And do not use a plastic or canvas sheet.
不要用塑料布或者帆布。
Don't worry about rain. And do not use a plastic or canvas sheet.
不要担心下雨，不要使用塑料或帆布覆盖。
Groove joints are sealed by sheet steel and wrapped with canvas. This new construction technology improves anti-seepage property as well as expedite construction speed.
对地下连续墙槽段节点采用钢板封口及外包帆布的施工新工艺，提高了构造的抗渗漏性能，也加快了施工速度。
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