求翻译：为便于基坑开挖和减少围护结构在开挖中变形，基坑内设置轻型井点降水，水位降至基坑设计开挖面以下1m处。是什么意思？

For ease of excavation and the excavation to reduce the deformation in the envelope, set the light within the pit dewatering, water level down to the excavation face the following pit design at 1m.

In order to facilitate pit digging and reduce Wai care structures in digging in the pit, deformation settings light wells point precipitation, water level down to pit-oriented design digging the following 1m.

In order to be advantageous for structure excavation and the reduced surrounding protection structure distorts in excavating, in the hole excavated for building foundation establishes the light well point precipitation, the water level falls to the hole excavated for building foundation design excav

For the purpose of retaining structure in excavation of Foundation pit excavation and reduce distortion, set in light well-point dewatering of Foundation pit, the water level dropped to Foundation pit excavation below the design 1M.

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