The traditional drainage method isn′t practical. Drainage cutting combined with weeper drain could quickly dewater to the designed water level.
用疏导法排水与盲沟排水相结合的技术措施，能快捷有效地把泉水降至设计标高以下。
The traditional drainage method isn′t practical. Drainage cutting combined with weeper drain could quickly dewater to the designed water level.
用疏导法排水与盲沟排水相结合的技术措施，能快捷有效地把泉水降至设计标高以下。
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