drainage hole

短语词组

短语

• height drainage drilling hole 高抽钻孔
• drainage e hole 放泄孔
• Continuous sewage drainage pipe hole 连续排污管口
• upward drainage hole 仰孔
• stopping the drainage hole 封孔
• exit flowing drainage hole 逸流型排水孔
• overflowing drainage hole 溢流型排水孔
• drainage of explosive hole 炮孔排水
• escape flow drainage hole 逸流型排水孔
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