dump valve
倾卸阀
翻斗阀
漏油瓣
放卸阀
应急排放阀
事故排放阀
卸矿车
卸油阀
motorized double-acting dust dump valve
valve spring steel wire
Spring Force of Constant Torque Spring and Wing-up Spring
pressure reducing valve reducing valve
valve disc type breath valve
contact spring pile-up (contact spring assembly)
spring wheat spring corn intercropping system
chamber saturation chamber (= CS-chamber)
HBO chamber hyperbaric oxygen chamber