Introduces the structure, work principle and design principle of the opening jerrican transportation machine.

介绍一种敞口油桶搬运机的结构、工作原理和设计原理。

youdao

Introduces the structure, work principle and design principle of the opening jerrican transportation machine.

介绍一种敞口油桶搬运机的结构、工作原理和设计原理。

youdao