... chemical dosing 化学配料 chemical drains 化学疏水 chemical drains collecting circuit 化学疏水收集回路 ...
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chemical drains collecting circuit 化学疏水收集回路
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The method comprises the flowing steps: arranging the isolation layer, laying the blind drains, constructing the water-collecting well, and improving physical and chemical soil properties.
所述方法包括设置隔离层,铺设盲沟,修筑集水 井,改善土壤理化性状。
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