bottom cleaning

短语词组

短語

• 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
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