?横梁发动机泵
... electronic beam pump 电子束抽运 beam engine pump 横梁发动机泵 balance beam engine pump 发动机平衡杆泵 ...
发动机平衡杆泵
There was an added intention of restoring the Scottish-made beam engine pump machinery to full working order.
UNESCO: Historical Waterworks Building wins Heritage Award
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。