Dense and bright electroplates were obtained from these baths.从所研制的镀液中得到了致密、亮的锌镀层.This article electroplates aluminum on the substrate of 08 F steel and AZ 91 D magnesium alloy.本文在08F钢和AZ91D镁合金上采用电镀铝的方法获得了铝镀层....
Listening to it in its entirety is also fairly unrewarding.把它完整地听下来后还是没多少收获。Yet over the past year or two, I have found my obsession increasingly unrewarding.但近一两年来, 我发现自己的这种执著已变得越来越不值得.Lectures often seem very formal an...