loading valve  装卸阀

pilot valve loading spring  先导阀加载弹簧

valve loading spring  承阀弹簧

signal loading valve  信号加载阀

loading sensing pressure limiting valve  感载限压阀

loading sensing pressure proportoining valve  感载比例阀

Valve point loading  阀点效应

gas valve valve seat  气门-门座

valve-valve base  气门-气门座

Valve-valve seat  气门-气门座

heavy loading and over loading  重载和超载

auxiliary valve relief valve setting  辅助阀安全阀调定

bell- shaped valve cup valve  钟形阀; 杯形阀

blade control valve relief valve  铲刀控制阀安全阀

brake valve relief valve  制动阀安全阀

butterfly valve + non-return intake valve  蝶阀+止回阀式进气阀

clack valve clap valve  蝶形阀

cooling valve charge relief valve pressure test  冷却阀加注安全阀压力试验

cup valve bell shaped valve  杯形阀; 钟形阀

cup valve(bell-shaped valve)  钟形阀; 杯形阀