;
雨水;4 All removable internals shall be checked by suitable methods to ensure their insertability and removability through the manhole.
所有可拆除内件均需使
适当
方法进行检查以确保其通过人孔可嵌入性及可拆除性。
东西4 All removable internals shall be checked by suitable methods to ensure their insertability and removability through the manhole.
所有可拆除内件均需使适当方法进行检查以确保其通过人孔可嵌入性及可拆除性。
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