短語詞組短語push h button switch 按鈕開關(guān)push -button switch box 按鈕開關(guān)盒unidirection push -button switch 直鍵開關(guān)emergency push -button switch 備用按鈕開關(guān);事故按鈕開關(guān)momentary push -button switch 瞬動式按鈕開關(guān)operation of a push -button switch 按鈕開關(guān)的動作Uni -directional Push-button Switch 直鍵開關(guān)Surface -type Push-button Switch 明裝按鈕開關(guān) 返回 push button switch