基本解释[经济学]制动块支撑词组短语短语brake shoe anchor pin 闸瓦固定销brake shoe anchor pin cam 闸瓦支点销偏心轮brake anchor pin bushing 锚定螺杆衬套brake -shoe anchor pin 闸瓦固定销brake e shoe anchor pin 闸瓦固定销brake anchor pin更多词组专业释义经济学制动块支撑