The technique of reclaiming disturbed lands by use of a hydraulic dredge pump, called"digging deep to fill shallow", has been used in the treatment of subsidence areas incoal mines.
用泥浆泵挖深垫浅的复田方法已在我国煤矿沉陷区治理中得到应用，但迄今为止尚未对这一技术进行深入研究。
The technique of reclaiming disturbed lands by use of a hydraulic dredge pump, called"digging deep to fill shallow", has been used in the treatment of subsidence areas incoal mines.
用泥浆泵挖深垫浅的复田方法已在我国煤矿沉陷区治理中得到应用，但迄今为止尚未对这一技术进行深入研究。
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