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排水水封
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排水水封
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drain water seal
排水水封
设在卫生器具排水口下抵抗排水管内气压差变化,防止排水管道系统中气体窜入室内的一定高度的水柱。
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Peking Opera
Peking Opera Class and Qinqiang Opera Class of Xinjiang Art School
Peking opera music
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Peking Opera Symposium on the 200th Anniversary of Anhui Opera Troupes’ Arrival in Beijing
Peking Opera Theatre of Beijing
Peking Opera Theatre of Hubei Province
Peking Opera Theatre of Jiangsu Performing Arts Group
Peking Opera Training School
Peking Opera Troupe Of Dalian City
Peking Political Council of the Executive Yuan
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Peking Traditional Opera School
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PEKK
Pekoe oolong tea
pelage
Pelagianism
pelagic sea microbes
pelagic sedimentation
pelagic survey
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