?压差式真空计
... 真空计指示单元gauge indicating unit 压差式真空计differential vacuum gauge 绝对真空计absolute vacuum gauge ...
?差示真空规
Handheld Differential Pressure Gauge 手持式差压计 differential vacuum gauge 差示真空规 ; 压差式真空计 differential level gauge 差压液面计 ..
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。