·2,447,543篇论文数据，部分数据来源于NoteExpress
The status of various reduction motors of pumping unit has been analyzed, and a research on design of a kind of three groups duplicate gear reduction motor has been made.
分析抽油机上使用的各种减速电机的现状，对抽油机的三组双联齿轮减速电动机设计进行了研究。
youdao
应用推荐
模块上移
模块下移
不移动