您要查找的是不是：
- PE阀门 polyethylene valves
- 阀门 valve
- 电动阀门 electrically operated valve
- PE polyethylene (PE)
- 水阀门 penstock
- PE管 PE pipe
- 拧紧阀门 to pack valves
- PE线 PE line
- PE蜡 PE wax
- 他很快查到了出毛病的阀门。 He soon detected the faulty valve.
- PE-RT PE-RT
- 上述各数值是指在不连接阀门的情况下执行机构的性能。 The above data represent the performance of the positioner on an actuator without a valve.
- UHMW-PE UHMW-PE
- 阀门开度 valve opening
- PE管道 PE pipeline
- 管道阀门 pipeline valve
- PE文件 PE file
- 安全阀门座 safety valve seat
- PE病毒 PE virus
- 暗杆阀门 ono-rising-stem valve
