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  • The application of synthetic grease on oil exhauster was introduced, and the remarkable economy benefit was obtained.

    介绍了合成润滑脂在油田抽油机上的应用，取得了明显的经济效益。

    youdao

  • The application of synthetic grease on oil exhauster was introduced, and the remarkable economy benefit was obtained.

    介绍了合成润滑脂在油田抽油机上的应用，取得了明显的经济效益。

    youdao

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