Once the cold water enters the flack, the vapor pressure falls quickly.一旦冷水进入长颈瓶, 水气压就迅速下降.A test device for flack flowing systems based on virtual instrument technology is developed.研制基于虚拟仪器技术的高炮随动系统性能检测装置....
别说我活该，不然让你尝尝我的拳头。Don't say it serves me right or I'll thump you.除非你要搞什么小动作，不然你为什么单要一间房？Why did you need a room unless you were up to something?别这么吝啬布料，不然做出来的窗帘会显得特寒酸。Don't be mean with fabric, otherwise cu...