给你的耳朵一些假期吧! 

可锁定全球适配航空插头

Easy connect and disconnect the power supply to the enclosure. The power supply included is electrically worldwide compatible 

OTHER FEATURES
windows for oil level check
油位观测窗
VACUUM TUBING AND CABLES GROMMET
indicator light for operating statut of vacuum pump enclosure
工作状态指示灯
GRANT YOUR EARS SOME HOLIDAYS !