工艺参数优化后的激光无氧切割可获得基本无挂渣、无氧化的光滑切割断口。
The parameter - optimized laser fusion cutting can obtain smooth cut edges without dross and oxidation.
他和他班上一些大学生想利用氧化氮作为无排放的动力能源。
He and some of his grad students wanted to use nitrous oxide as an emissions-free energy source.
只有这些都不排放二氧化碳，电动车才可以说是无碳的。
None of those can emit carbon dioxide. If any do, the electric vehicle isn't carbon-neutral.
应用推荐