7004| 12
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為什么說液壓馬達(dá)本身就存在內(nèi)泄漏的? |
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點(diǎn)評(píng)
密封主要為了提高馬達(dá)容積效率
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點(diǎn)評(píng)
去測試臺(tái)看,能學(xué)到更多
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