change gear lever

基本解释

The appearance of the air holes would lead to the decrease in mechanical properties and gas tightness of Shell-Gear-Change-Lever.
这些缺陷的存在使得材料的力学性能下降，同时气密性也变差。
The research is mainly on the realization of Shell-Gear-Change-Lever's die-casting mold CAE and the establishment of standard mould bases.
本文重点进行了镁合金汽车零件压铸模CAE 实现的研究和标准模架库的建立。
The corresponding results show that the mainly defects during casting are air holes and shrinkage with using die-casting techniques to manufacture the Shell-Gear-Change-Lever.
通过对铸件充型模拟，分析结果表明利用压铸技术生产镁合金汽车换档壳体时，铸件中的主要缺陷为气孔和缩松。