| |||
观察〔检验,检测〕孔 | |||
观测孔; 检验镜 | |||
检査口 | |||
监测孔 | |||
检察孔; 窥视孔; 视孔 | |||
检查孔 | |||
视察窗 | |||
检验口 | |||
检修孔 | |||
检查钻孔; 观室孔; 检查口; 测视孔检修孔 | |||
检验孔 | |||
观察孔 | |||
检査孔 |
inspection hole : 23 phrases in 7 subjects |
Automobiles | 1 |
Aviation | 1 |
Electric machinery | 1 |
Electronics | 4 |
Refrigeration | 1 |
Shipbuilding | 1 |
Technology | 14 |