采煤工作面支护的英文

coalface support

• 采煤:    cut coal
• 工作面支护:    face timbering
• 采煤工作面:    coal face; coal wa ...

例句与用法

1. The support power of the trend longwall coal face
   走向长壁高档采煤工作面支护力
2. Graphical symbols for use in technical documentation of coal mine machinery - graphical symbols for coal face support machinery
   煤矿机械技术文件用图形符号采煤工作面支护机械图形符号