?紧密窑井盖
... Water tight manhole plate 水密人孔板 tight manhole cover 紧密窑井盖 Oil tight manhole plate 油密人孔板 ...
?检查井密盖
... 风雨密盖 weather proof cover 检查井密盖 tight manhole cover 降钙素(密盖息) calcitonin ...
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。