?放水孔
... 滴水孔 drip hole 放水孔 condensate drain orifice; dewatering orifice; outlet hole; relief hole; water ... 换水孔 exchanging water hole ...
?排水孔
... dewatering culvert 排水暗沟 dewatering orifice 排水孔 dewatering screen 沥水筛 ...
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。