舷梯上许多人上上下下。There's a lot of rushing up and down the gangways.总统在飞机的舷梯上向人群挥手.The president waved at the crowd from the steps of the plane.她在警卫的护送下上了飞机尾部的舷梯。She was shepherded by her guards up the rear ramp of the air...
Language is something which fundamentally distinguishes humans from animals.语言是将人类与动物区分开来的基本特征。His opponents still say he's a fundamentally untrustworthy figure.他的对手依然说他根本不可信。The thinking is good-hearted, but muddle...
触发器用来产生激励脉冲,供闸流管点火.The trigger is used for generating excitation pulse for the thyratron to ignite.也可以用 可控硅 整流器或者是半导体闸流管.A SCR ( silicon controlled rectifier ) or thyrister can also be substituted for the contactor.然而,半导...
Based on the experience, the authors set forth a series of practical methods for electroen ˉ cephalograpns verification.本文作者结合多年的实际工作经验, 研究总结出一套实用的脑电图机检定方法,以供参考....