摩托车机油泵;摩托车润滑油泵
In this paper is discussed improvement of motorcycle oil pump and plan design about its application on motorboat as well as possibility, feasibility and contents of the plan.
本文介绍了将摩托车机油泵改进、改型后用于摩托艇的方案设计过程,论述了方案设计的必要性、可行性和方案内容。
微语录 · 爱情句子
微语录 · 个性签名
微语录 · 句子大全