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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
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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