bottom cleaning
短语词组
- Bottom Plate Cleaning 底板清洗
- bottom surface cleaning technology 下表面清理技术
- tunnel bottom cleaning 卧底;巷道卧底
- bottom -hole cleaning 井底清洗;净化井底
- bottom cleaning plug 底部清除塞
- bottom cleaning machine 卧底机
- reservoir bottom cleaning 库底清理
- cleaning bottom of hole 扫孔
- CLEANING BOTTOM BIT 清底刀 返回 bottom cleaning