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can i kown about the difference with convice and sure?
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只看楼主 我来说两句-
lcf1788
沙发
Water seal is also right.I have seen it in an American code for plubming.
2003-09-02 13:12:02
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water-engineer
板凳
I know for sure that trap is correct translation. seal means to use plastic or rubber cap, not water as cap to prevent odor escaping
2003-08-28 23:03:28
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