differential drain trap的意思|示意

温差排泄阱 differential drain trap 温差式排泄闸; 温差排泄阱 收藏 drain opening 排水囗; 排油口 收藏 .

温差式排泄闸 ... 差压风表 differential draft gauge 温差式排泄闸 differential drain trap 交转式发动机 differential engine ...

温差式阻汽器 ... differential device 差动装置 differential drain trap 温差式阻汽器 differential drive tachnmeter 差动传动式转速表 ...