Place the tester adapter over the opening.把试验器连接装置放在加油口上.The enamel surface microhardness was measured by a Leitzs microhardness tester.采用维氏显微硬度仪测定经饮料浸泡后牙釉质表面显微硬度的变化.Tester must read all zeroes.检测器读数必须都为零.Durometer harde...
We operate six schools in three diverse regions of Colombia: Barranquilla , Quibd � � and Altos de Cazuc á.我们在哥伦比亚 巴兰吉拉 、 基布多、上卡祖卡(LosaltosdeCazuca)这三个不同的地区共建有六所学校.The worker oils the machine to operate it more efficient...