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...
他们赤着脚, 光着背,汗水不断地从脸上流下.He, aw - ah , oh . They are barefoot and naked to the waist.天气已经暖和,他赤着脚光着上身干活.It was already warm and he worked barefooted and stripped to the waist....