新手,有幾個(gè)問(wèn)題請(qǐng)教.大俠幫忙啊

hidemein

偶是新手.剛開(kāi)始做軸承外貿(mào).

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有幾個(gè)專(zhuān)業(yè)名詞不明白.請(qǐng)大家?guī)兔?

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metallurgical quality

ground

hard turned

hard hobbed surface

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hard finished steel surface

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謝謝啊~~~~

hidemein

郁悶.
5 L5 p7 j( I0 r6 q; i下載專(zhuān)區(qū)很多東西看不了.
怎么回事?
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ni010485

你會(huì)查英語(yǔ)字典嗎？查下就知道了