1.
How to Select the Main Parameters of the Grooved Ball- Chamber of Closed Valve Bonnet on Sucker Rod Pumps.
抽油泵闭式阀罩槽形球室主要结构参数的选择
2.
The structure of closed valve bonnet influences the perfor-mance of sucker rod pumps.
闭式阀罩是影响抽油泵使用性能的零件。
3.
Electric Field Analysis and Parameter Extraction of Shielding Cover of HVDC Converter Valve System
HVDC换流阀系统屏蔽罩的电场分析和电容参数提取
4.
For safety we should use dual valves to aid safe pressure reduction, and cap the sample outlets.
为了安全起见我们要在取样点设双阀以便于安全的压降，取样口还要加护罩。
5.
discharging valve
排出阀排气阀排水阀
6.
Type of valve- gate, globe, check, etc.
阀门种类：闸阀，截止阀，止回阀，蝶阀，球阀，等等。
7.
This is a gate valve (check valve, butterfly valve, cut-off valve, magnetic valve, remote valve, relief valve, throttle valve, cock).
这是一个闸阀（止回阀、蝶阀、切断阀、电磁阀、遥控阀、安全阀、节流阀、旋塞）。
8.
a safety, exhaust valve
安全阀、 排气阀.
9.
cover ,tea pot (cosies), of textile materials
茶壶罩（保暖罩）纺织品制
10.
The cowling on an aircraft.
整流罩飞机的引擎外罩
11.
To enclose in or as if in a corset.
罩衣使…罩在或好象罩在紧身内衣里
12.
Check Valve 1;Check Valve 2;Check Valve 3;Screw-down
止回阀 1;止回阀 2;止回阀 3;旋拧阀
13.
General purpose industrial valves-Diaphragm valves
GB/T12239-1989通用阀门隔膜阀
14.
The median groove of a diatom valve.
阀缝硅藻阀上的中槽
15.
pneumatic cylinder cock valve
风动汽缸排水阀阀门
16.
safety valve dome
安全阀汽包，安全阀座
17.
hose connection valve
软管联结阀软管连接阀
18.
air admission valve
进气阀,真空破坏阀