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洗井
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洗井
Encyclopedia
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水井钻进作业
释
well washing
洗井
水井打成之后,需替换和清洗井内的泥浆、沉淀物,以及井壁泥皮和含水层孔隙内的堵塞物等,使砾料和靠近砾料含水层中的颗粒重新按其大小自然排列,以形成良好的人工过滤层,水流畅通并达到水清、砂净的作业。
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magnetic loss
magnetic Mach number
magnetic macroturbulence
magnetic marker
magnetic mass spectrometer
magnetic master
magnetic material
magnetic material of magnet unit
magnetic materials
magnetic material with rectangular hysteresis loop
magnetic measurement instrment
magnetic measurement of weak magnetic substances
magnetic measuring instruments
magnetic mediated hyperthermia
magnetic medium
magnetic memory
magnetic memory core
magnetic memory materials
magnetic memory method
magnetic merging
magnetic meridian
magnetic metal membrane
magnetic methods of determining residual stress
magnetic microspheres
magnetic microturbulence
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