I step back, put the gas nozzle and hose between my body and hers, press the gas lever.
我向后退了退，把油龙头放在了我的身体和她的身体之间的地方，按了一下油杆。
In the peristaltic pump, a plurality of rollers roll to press an elastic hose continuously, so that liquid is transported in accordance with the movement direction of the rollers.
该蠕动泵是 由几个滚轮滚动连续不断地压迫弹性软管，将流体按滚轮运动的方向输送。
In the peristaltic pump, a plurality of rollers roll to press an elastic hose continuously, so that liquid is transported in accordance with the movement direction of the rollers.
该蠕动泵是 由几个滚轮滚动连续不断地压迫弹性软管，将流体按滚轮运动的方向输送。
应用推荐