bottom cleaning

短语词组

短语

• 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
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