... 她跑啊跑啊，汗水顺着脸颊流下来 » She ran, ah, ah, sweat ran down streaming down her cheeks 减速器型号 » Gear unit type 我出生在吉林省的辽源市，是一个地道的东北女孩 » I was born in Jilin Province of Liaoyuan City, is a typical northeast gir...
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gear type unit 齿轮式装置
The drum type pumping unit with the new reverse mechanism has the advantages of impact structure, light weight and extended gear reducer life.
采用这种机构设计出的滚筒机具有结构紧凑、重量轻及减速器寿命长等优点。
The non-beam pumping unit of planetary gear-ring type is a kind of new non-beam pumping unit.
行星齿环式无游梁抽油机是一种新型的无游梁抽油机。
In this thesis, the author performed further study on the non-beam pumping unit of planetary gear-ring type based on the previous study.
本文在先期研究的基础上对行星齿环式无游梁抽油机进行了更加深入的研究。
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