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齿轮油
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齿轮油
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润滑油
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gear oil
齿轮油
以石油润滑油基础油或合成润滑油为主,加入其他添加剂调制而成的润滑油。用于各种齿轮传动装置,以防止齿面磨损、擦伤、烧结等,延长传动装置的寿命,提高传递效率,减少功率损失。
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petrochemistry
petrocole
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petrogenetic grid
Petroglyph in Chulut River Valley
Petroglyphs within the Archaeological Landscape of Tamgaly
petrographic geomorphology
petrographic texture and structure
petroleum
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