breaking down test耐壓試驗;擊穿試驗;耐電壓試驗;破壞試驗
breaking down the walls打破那道墻
breaking-down切斷;斷電;發生故障;失靈
breaking down the pipe將立柱卸成單根
breaking down point斷裂點
breaking down shovel平煤器
breaking-down process斷裂過程;斷裂長
breaking-down point破壞點
breaking-down shovel煤艙內平煤器