The pump exhaust should lead to the open air or a fume hood.抽气泵的排气管应该导向室外空旷处或导向一座通风橱.She was in a fume of impatience because she had to wait for the others.为了必须等别人,她非常不耐烦.Place the apparatus in a fume cupboard and cool t...
The utility model relates a linkage device of a cooking fume exhauster and a gas stove.一种燃气炉与抽油烟机的联动装置.The pump exhaust should lead to the open air or a fume hood.抽气泵的排气管应该导向室外空旷处或导向一座通风橱.Place the apparatus in a fume cu...
Many pesticides are irritants.很多杀虫剂都具有刺激性。Drink a lot lots of water, a boy tebacle. Avoid tobacco smoke and other irritancy irritants.多喝水, 少吸烟,少喝酒,和其他刺激性的东西.Mustard oils are irritants, capable of causing serious injury t...
物理学研究力学、热学 、 光学 、 声学和电学.Physics studies mechanics , heat, light, sound and electricity.这两个学生都做了不少电学实验.Both students have made quite a few experiments on electricity.从量子电动力学可以得出所有已知的电学 、 力学和化学定律.Out of quantum electrodyna...
一道拦河坝将会在上游拦住水流，抬升水位。A barrage would halt the flow upstream and lift the water level.拦河坝把河流控制住了.Rivers are controlled by dams.我们决定筑一道拦河坝.We decided to dam the river....