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大便器排水口与排水管之间的缝隙均匀,缝间填满油灰,确保不渗漏。
The crack between outlet of water closet and drainage pipe should be even and filled with putty to prevent leak.
youdao
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大便器排水口与排水管之间的缝隙均匀,缝间填满油灰,确保不渗漏。
The crack between outlet of water closet and drainage pipe should be even and filled with putty to prevent leak.
youdao