bottom cleaning
短语词组
- Bottom Plate Cleaning 底板清洗
- bottom surface cleaning technology 下表麪清理技術
- tunnel bottom cleaning 臥底;巷道臥底
- bottom -hole cleaning 井底清洗;淨化井底
- bottom cleaning plug 底部清除塞
- bottom cleaning machine 臥底機
- reservoir bottom cleaning 庫底清理
- cleaning bottom of hole 掃孔
- CLEANING BOTTOM BIT 清底刀 返回 bottom cleaning