The cold precision forging process of two kinds of inner gear with typical structure (hole-through inner gear & non-hole-through inner gear) is proposed.
提出了两类典型结构内齿轮(贯通内齿轮和非贯通内齿轮)的冷精锻成形工艺方案。
参考来源 - 直齿内齿轮冷精锻成形工艺分析及实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The cold precision forging process of two kinds of inner gear with typical structure (hole-through inner gear & non-hole-through inner gear) is proposed.
提出了两类典型结构内齿轮（贯通内齿轮和非贯通内齿轮）的冷精锻成形工艺方案。
Objectives: Through observing skull bottom non-hole crack weak area, to provide anatomy foundation for the ultrasonic investigation in the skull and bone fracture in the skull bottom.
目的：观测颅底非孔裂薄弱区，为颅底骨折及颅内超声探查提供解剖学基础。
In this paper, it is discussed that non-central hole rotors essentialness and its advantage through studying the reason of adopting central hole rotor and its disadvantage.
从分析转子中心孔的由来及中心孔的缺点，阐述了无中心孔的必要性和优越性。
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