first gear position是什么意思

用法例句

Numerical analysis of motorbike profile modified gear forming and optimization of its mould structure;

摩托车档位齿轮成形数值分析与模具结构优化

The rational rough and technological parameter of profile modified gear is gained by analysis and optimizing of forming, and the preliminary shaping size of product is defined.

根据摩托车档位齿轮的产品特点,进行成型工艺分析优化,获得合理的产品精化毛坯,拔模斜度等参数,获取产品的预成型毛坯尺寸。