“drain water seal”的概念、定义、翻译、参考文献-科学参考

单词	drain water seal
释义	drain water seal Encyclopedia 工学实验排水系统释 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。
随便看	expansion refrigeration expansion rule expansion silencer expansion slot Expansions on Three Theories: On Poetry expansion test expansion theorem expansion thermometer expansion time-scale expansion tong expansion turbine expansion type temperature measurement expansion valve expansion wave expansion wave of reflection and intersection expansion work expansive expansive agents for concrete expansive cement expansive classification expansive concrete expansive constant expansive homeomorphism expansive map expansive mapping

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