wc pan 双语例句
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1·The invention discloses a WC pan pipeline-used water sealing stopper and particularly relates to a water sealing stopper used in discharging pipelines of a toile bowl and a squatting pan.
本发明公开了一种便器管用水封道塞件,具体涉及一种坐便器和蹲便器排水管路上起水 封作用的塞件;
