蒸发的物质能再凝结, 形成新的粒子.Evaporated material can recondense, forming new particles.吸气离子泵通过剩余气体与蒸发的金属之间的化学反应减少了内腔的压力.Getter - ion pumps decrease chamber pressure by chemical reaction of residual gases with an evaporated metal.它通...
We’ll have to observe the formalities.我们得按手续办事。to go through all the formalities necessary in order to get a gun licence办理取得持枪执照的全部必要手续The customs formalities for the exportation of the following cargo have been duly com...
The handwork does the gate is not fine, only supplies the reference.手工做的门就是不精致, 仅供参考.Reward: Welcome excellent person join us, Will together start mainland handwork brand's aglitter tomorrow.回报: 欢迎优秀者加入我们, 一起开创本土手工品...