wheel nut loader是什么意思

用法例句

A packaging machine for packaging tyre which uses transparent thermoplastic film was designed here.

设计了采用透明热塑薄膜进行轮胎包装的新型轮胎包装机,采用虚拟样机技术进行产品数字化装配,并进行了封口过程的运动仿真。