... reduction-gear housing 减速器箱 reduction-gear casing 减速齿轮箱壳 reduction marine gear 船用减速齿轮 ...
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... 二级减速齿轮箱 doublereduction gear box 减速齿轮箱壳 gear casing ; reduction gear casing 船用减速齿轮箱 marine reduction gear ...
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