趣英语 / “镦锻”造句

“镦锻”造句

介绍了石油钻杆端部镦锻加厚工艺基本原理及加厚方式.
The basic principle and the method of oil drill pipe end upsetting process were presented.

本文介绍了先进的TR镦锻法制造曲轴毛坯的工作原理.
The paper introduces the working principle in making crankshafts by using advanced TR upsetting.

曲轴全纤维弯曲镦锻成形技术的RR法 和TR法已被国内外广泛采用,但在工艺上存在一些固有的问题难以解决.
The RR and TR upset - bending forging process have been extensively used in making heavy crankshaft abroad.

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