Then they use either heat or an air pump to create suction between the cup and the skin, pulling the skin slightly up and away from the underlying muscles.
然后通过加热或抽气，让杯子和皮肤之间产生吸力，然后把皮肤从下层肌肉轻轻拉起。
2
The casing pump includes the pressure test device, speed reducer and sealing cup.
套管泵由压力检测装置、减速装置和密封皮碗等组成。
3
A lubricating grease suitable to meet the individual requirements for chassis lubricant, bearing lubricant, joint lubricant, water-pump lubricant, and cup grease.