vibration drum selector switch  振动鼓轮选择器开关

drum selector valve  卷筒选择器阀

drum selector valve protection relief valve pressure test  卷筒选择器阀防护安全阀压力试验

drum switch  鼓形开关; 筒形开关

multi-speed drum switch  多速鼓轮开关

reversing drum switch  倒顺鼓形开关

ammeter-voltmeter phase selector switch  电流表-电压表相位选择器开关

analyzer selector switch  分析器选择器开关

antenna selector switch  天线转换选择开关

console selector switch  选择器开关操纵台

control selector switch  控制选择器开关

direction selector switch  方向选择器开关

droop-isoch selector switch  下降-同步选择器开关

engine automatic control selector switch  发动机自动控制选择器开关

foot selector switch  脚踏选择开关

four-position selector switch  四位选择器开关

fuel selector switch  燃油选择器开关

gain-selector switch  增益选择开关

high selector switch  高选择器开关