Bifold氣動(dòng)電磁閥BXS-04-04-E1

武志鵬 QQ：2850590584   手機(jī)：17718588643 電話：010-64714988-214 傳真：010-64714988668 郵件：tk3@handelsen.cn

Bifold氣動(dòng)電磁閥BXS-04-04-E1技術(shù)參數(shù)

　　型號(hào)代碼：1/4閥體

　　最大10 Bar工作壓力

　　端口：1/4閥體端口

　　主操作器：自動(dòng)復(fù)位內(nèi)部先導(dǎo)閥

　　配置：3通，2位

　　配置：常閉

　　輔助操作器：彈簧復(fù)位

　　密封件：Viton -15C至+ 130C

　　電磁閥：Ex d

　　電磁閥認(rèn)證：ATEX / IECEx雙認(rèn)證/標(biāo)簽

　　電壓/電阻：24VDC

　　功率：1.8瓦

　　電纜入口：M20 x 1.5電纜入口

　　螺紋形式：NPT

　　面板安裝環(huán)：N / A

　　按鈕顏色：N / A

　　流量特性：出血前擋塊

　　Banjo組件：無Banjo適配器

　　重量(kg)：2.15

　　最大壓力(bar)：10

　　主要連接尺寸：1/4 NPT

　　閥門類型：間接作用電磁鐵

　

　　Bifold氣動(dòng)電磁閥BXS-04-04-E1技術(shù)參數(shù)

快速概覽：

電磁閥，316不銹鋼，1/4 NPT端口，3路2位，先導(dǎo)式，間接動(dòng)作，彈簧復(fù)位，Ex d，24VDC，自動(dòng)復(fù)位內(nèi)部先導(dǎo)，M20 x 1.5電纜入口，Cv 0.73。

 

　　Bifold Group簡(jiǎn)介

　　英國Bifold Fluidpower成立于上個(gè)世紀(jì)。Bifold的閥門廣泛用于石油和天然氣工業(yè)的有害環(huán)境中.Bifold最先進(jìn)的制造設(shè)施設(shè)在英國，在休斯頓和新加坡有銷售處.Bifold的技術(shù)核心在于不斷創(chuàng)新。同時(shí)， 英國Bifold公司為設(shè)計(jì)控制系統(tǒng)提供領(lǐng)先的技術(shù)解決方案，并可為消費(fèi)者提供優(yōu)質(zhì)的服務(wù)和技術(shù)支持。源于一個(gè)多世紀(jì)經(jīng)驗(yàn)的積累，Bifold Fluidpower可以為世界各地的客戶量身定做出適于極端工作環(huán)境的產(chǎn)品。

 

　　Bifold產(chǎn)品分類：

　　Bifold電磁閥             Bifold氣動(dòng)閥

　　Bifold高壓閥             Bifold疏水閥

　　Bifold高溫閥             Bifold快速排氣閥

　　Bifold方向控制閥         Bifold操作閥

　　Bifold扼流閥門           Bifold止回閥

　　Bifold HIPPS閥門         Bifold泵

　　Bifold氣缸               Bifold螺線管

　　Bifold壓縮機(jī)             Bifold過濾器

　　Bifold螺母分配器         Bifold快速連接器及液壓配件

 

　　Bifold型號(hào)示例：

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CA3

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CA6

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CA9

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CG3

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CG6

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CG9

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CI3

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CI6

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CI9

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CS3

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CS6

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CS9

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CU3

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CU6

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87CU9

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87DA3

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87DA6

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87DA9

　　Bifold FP06P-S1-04-32-NU-AG-24VDC-K85-87DG3

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CA3

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CA6

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CA9

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CG3

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CG6

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CG9

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CI3

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CI6

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CI9

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CS3

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CS6

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CS9

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CU3

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CU6

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87CU9

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87DA3

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87DA6

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87DA9

　　Bifold FP06PA-S1-04-32-NU-AG-24VDC-K85-87DG3

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA3/K85

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA3/M

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA3/ML

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA3/MLT

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA6/K85

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA6/K85

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA6/M

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA6/M

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA6/ML

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA6/ML

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA6/MLT

　　Bifold FP03P/02/32/NC/AL-24VDC/87BA6/MLT

　　Bifold FP03P/02/32/NC/AL-24VDC/87BG3/K85

　　Bifold FP03P/02/32/NC/AL-24VDC/87BG3/M

　　Bifold FP03P/02/32/NC/AL-24VDC/87BG3/ML

　　Bifold FP03P/02/32/NC/AL-24VDC/87BG3/MLT

　　Bifold FP03P/02/32/NC/AL-24VDC/87BG6/K85

　　Bifold FP03P/02/32/NC/AL-24VDC/87BG6/K85

　　Bifold FP03P/02/32/NC/AL-24VDC/87BG6/M

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CA-3

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CA-6

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CA-9

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CG-3

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CG-6

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CG-9

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CI-3

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CI-6

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CI-9

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CS-3

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CS-6

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CS-9

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CU-3

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CU-6

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-84CU-9

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-87CA-3

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-87CA-6

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-87CA-9

　　Bifold FP10P-S1-04-32-NU-AG-24VDC-K85-87CG-3

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CA-3

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CA-6

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CA-9

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CG-3

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CG-6

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CG-9

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CI-3

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CI-6

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CI-9

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CS-3

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CS-6

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CS-9

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CU-3

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CU-6

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-84CU-9

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-87CA-3

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-87CA-6

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-87CA-9

　　Bifold FP10PA-S1-04-32-NU-AG-24VDC-K85-87CG-3

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DA3

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DA6

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DA9

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DG3

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DG6

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DG9

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DI3

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DI6

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DI9

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DS3

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DS6

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87DS9

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87KA3

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87KA6

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87KA9

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87KG3

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87KG6

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87KG9

　　Bifold FP12P-S1-04-32-DV-AG-24VDC-K6-87KI3

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DA3

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DA6

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DA9

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DG3

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DG6

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DG9

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DI3

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DI6

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DI9

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DS3

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DS6

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87DS9

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87KA3

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87KA6

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87KA9

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87KG3

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87KG6

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87KG9

　　Bifold FP12PA-S1-04-32-DV-AG-24VDC-K6-87KI3

　　Bifold SJ06-E1-22-NC-00-84CA3-24VDC-K4

　　Bifold SJ06-E1-22-NC-00-84CA3-24VDC-K6

　　Bifold SJ06-E1-22-NC-00-84CA3-24VDC-K85

　　Bifold SJ06-E1-22-NC-00-84CA6-24VDC-K4

　　Bifold SJ06-E1-22-NC-00-84CA6-24VDC-K6

　　Bifold SJ06-E1-22-NC-00-84CA6-24VDC-K85

　　Bifold SJ06-E1-22-NC-00-84CA9-24VDC-K4

　　Bifold SJ06-E1-22-NC-00-84CA9-24VDC-K6

　　Bifold SJ06-E1-22-NC-00-84CA9-24VDC-K85

　　Bifold SJ06-E1-22-NC-00-84CG3-24VDC-K4

　　Bifold SJ06-E1-22-NC-00-84CG3-24VDC-K6

　　Bifold SJ06-E1-22-NC-00-84CG3-24VDC-K85

　　Bifold SJ06-E1-22-NC-00-84CG6-24VDC-K4

　　Bifold SJ06-E1-22-NC-00-84CG6-24VDC-K6

　　Bifold SJ06-E1-22-NC-00-84CG6-24VDC-K85

　　Bifold SJ06-E1-22-NC-00-84CG9-24VDC-K4

　　Bifold SJ06-E1-22-NC-00-84CG9-24VDC-K6

　　Bifold SJ06-E1-22-NC-00-84CG9-24VDC-K85

　　Bifold SJ06-E1-22-NC-00-84CI3-24VDC-K4

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/H2S

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/H2S

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/K6

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/K6

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/K85

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/K85

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/L93

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/L93

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/M

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/M

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/ML

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/ML

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/MOR

　　Bifold SVP8008/NC/04/A-24VDC/97HA3/MOR

　　Bifold SVP8008/NC/04/A-24VDC/97HA6/H2S

　　Bifold SVP8008/NC/04/A-24VDC/97HA6/H2S

　　Bifold SVP8008/NC/04/A-24VDC/97HA6/K6

　　Bifold SVP8008/NC/04/A-24VDC/97HA6/K6

　　Bifold SVP8008/NC/04/A-24VDC/97HA6/K85

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA3/K85

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA3/M

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA3/ML

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA3/MOR

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA3/WS

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA6/K85

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA6/M

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA6/ML

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA6/MOR

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA6/WS

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA9/K85

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA9/M

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA9/ML

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA9/MOR

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CA9/WS

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CG3/K85

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CG3/M

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CG3/ML

　　Bifold FP01/S1/M/22/DV/S-24VDC/97CG3/MOR

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/EP

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/EP

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/H2S

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/K6

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/K85

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/M

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/ML

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/MOR

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/MSO

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/NO

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/OPSO

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/S1

　　Bifold FP15/S1/04/22/A-24VDC/97CA1/WS

　　Bifold FP15/S1/04/22/A-24VDC/97CA2/A1

　　Bifold FP15/S1/04/22/A-24VDC/97CA2/EP

　　Bifold FP15/S1/04/22/A-24VDC/97CA2/EP

　　Bifold FP15/S1/04/22/A-24VDC/97CA2/H2S

　　Bifold FP15/S1/04/22/A-24VDC/97CA2/K6

　　Bifold FP15/S1/04/22/A-24VDC/97CA2/K85

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/EP

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/EP

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/H2S

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/K6

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/K85

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/M

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/ML

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/MOR

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/MSO

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/NO

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/OPSO

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/S1

　　Bifold FP15/S5/04/22/A-24VDC/97CA1/WS

　　Bifold FP15/S5/04/22/A-24VDC/97CA2/A1

　　Bifold FP15/S5/04/22/A-24VDC/97CA2/EP

　　Bifold FP15/S5/04/22/A-24VDC/97CA2/EP

　　Bifold FP15/S5/04/22/A-24VDC/97CA2/H2S

　　Bifold FP15/S5/04/22/A-24VDC/97CA2/K6

　　Bifold FP15/S5/04/22/A-24VDC/97CA2/K85

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/EP

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/EP

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/H2S

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/K6

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/K85

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/M

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/ML

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/MOR

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/MSO

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/NO

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/OPSO

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/S1

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA1/WS

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA2/A1

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA2/EP

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA2/EP

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA2/H2S

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA2/K6

　　Bifold FP15/S3/S3/04/22/A-24VDC/97CA2/K85

　　Bifold FP50/SH0/08/32/A-24VDC/97CA1/H2S

　　Bifold FP50/SH0/08/32/A-24VDC/97CA1/K6

　　Bifold FP50/SH0/08/32/A-24VDC/97CA1/K85

　　Bifold FP50/SH0/08/32/A-24VDC/97CA1/M

 
Bifold氣動(dòng)電磁閥BXS-04-04-E1技術(shù)參數(shù)