明杆平行式双闸滑阀
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明杆平行式双闸板闸板
double disk parallel gate valves
明杆式闸阀
rising stem gate valve
电动平行式双闸板闸板
electric double disk parallel gate valves
平行式闸阀
parallel slide gate valve
同杆平行双回线
parallel double transmission line on the same tower
double transmission line on one pole
平滑式阀控铅蓄电池
Smoothing VRLA Battery
平行滑行道
parallel taxiway
平行双闸板
double disc parallel seat
暗杆楔式闸阀
non-rising stem wedge gate valve
non-rising stem wedge sluice valve
不升杆式阀
non-rising stem valve
测杆式平衡
balancing with measuring rod
斗杆阀阀芯
stick valve spool
斗杆滑阀总成
stick spool assembly
杆式平衡器
beam type equalizer
杆式行波型超声电机
bar-type traveling wave ultrasonic motor
Bar-type t raveling wave ultrasonic motor
杆式行打印机
bar printer
bar line printer
滑阀杆
valve spool lever
slide valve rod
进气阀阀杆
inlet valve spindle
井口暗杆闸阀
non-rising stem gate valve for wellhead
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