本文的设计思路对今后无杆泵采油等类似问题具有启发作用。

This design thinking may have inspirement for similar non-rod pump production from now on.

youdao

本文的设计思路对今后无杆泵采油等类似问题具有启发作用。

This design thinking may have inspirement for similar non-rod pump production from now on.

youdao