目的了解健康青年人的前庭自旋轉(zhuǎn)試驗(yàn) ( VAT ) 的正常值.Objective To explore the normal values of vestibular autorotation test ( VAT ) in young people.試驗(yàn)結(jié)果表明:用自旋轉(zhuǎn)車刀加工金屬纖維是一種行之有效的切削加工方法.Experimental results show that machining metal fibre by usin...