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- Gaseous helium is used as an inert shielding gas in metal arc and laser welding. 在金属电弧和激光焊接中气态氦用作惰性屏蔽气体。
- I do not know why acids eat in metals. 我不知道酸腐蚀金属的原因。
- It follows that acids eat in metals. 由此可知,各种酸对金属都有腐蚀作用。
- We are well served with gas in this town. 这个城镇煤气供应得很好。
- There are several kinds of gas in the air. 空气中有几种气体。
- spectrochemical analysis of gases in metal 金属中气体的光谱分析
- Studies on the Energy of Free Electron Gas in Metal 金属中自由电子气能量的研究
- Do you know the reason why acids can eat in metals? 你知道酸腐蚀金属的原因吗?
- It follow that acids eat in metals. 由此可知,各种酸对金属都有腐蚀作用。
- My mom has not pumped gas in over two decades. 我妈妈自己不去加油都已经20年了。
- Fundamentals of Creep in Metals and Alloys. 金属与合金中蠕变的基础原理。
- She detected the odor of gas in the room. 她闻到房里有煤气味。
- An electric current in metal is caused by the movement of electrons. 金属内电流是由电子运动引起的。
- Take care not to let the gas in the tube blow back. 当心别让管子里的煤气倒燃(爆炸)。
- Why acids eat in metal is still a question. 酸为什么腐蚀金属仍是个问题。
- Usually we put some gas in the place of the air. 通常我们充一些别的气体来代替空气。
- Gases in Liquids, Test for Solubility of Fixed (05. 流体中气体的固定溶解性的试验(05。
- He has solved the question why acids eat in metal. 他已经解决了酸腐蚀金属的问题。
- So, your dad always puts gas in my car. 所以,总是你爸爸去为我的汽车加油。
- Another effect of coldness appears in metal. 低温的另一个效应表现在金属中。