Simulation calculation and experimentation research are two important ways to carry out research and development on valve train of internal-combustion engine.
模拟计算和试验研究是研究内燃机配气机构的两种重要手段。
参考来源 - 内燃机配气凸轮优化设计与研究·2,447,543篇论文数据,部分数据来源于NoteExpress
In the end, combined with the field experimentation research in real project, the paper has checked and improved the relevant contents.
最后结合实体工程试验研究,对所研究内容进行了校核和改进。
Experimentation research on hydraulic model of transportation halogen water pump are introduced, and performance of impeller front clearance in distinctness is studied.
介绍了输卤泵水力模型的实验研究,分析了叶轮前间隙不同时模型泵的性能。
He also wants to make permanent a tax credit for research and experimentation.
他还想把各企业在研究和实验方面获得的一项税务优惠永久化。
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