I know (roughly) the physics that keeps a multi-ton steel behemoth aloft.
我大体上知道让这个数吨重的钢铁庞然大物飞起来的物理学原理。
A multi objective design is proposed by assuming the jacket platform as a steel frame structure.
把导管架海洋平台看作钢框架结构，并把多目标优化设计方法用于结构的设计中。
The microstructure evolution of Q235 plain carbon steel in multi-pass hot deformation was investigated by means of hot compression simulation.
利用热模拟压缩变形实验研究了Q 235碳素钢多道次热变形及后续处理过程的组织演变规律。
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