Application: Be fit for fluorescent flaw detection and fluorescence analysis.用途: 适用于荧光探伤和荧光分析.From 1942 onward I worked on the first anti - midget - submarine detection systems.从1942年往后,我研究了头一批 反 小型潜艇的探测系统.British office...
The little boy was speechless with shock.那小男孩惊得说不出话来。Alex was almost speechless with rage and despair.亚历克斯又生气又绝望，几乎说不出话来。Laura was speechless with rage.劳拉气得说不出话来。...
Neil's colleagues say he was actually in a joking, upbeat mood.内尔的同事们说他实际上在说笑逗乐，心情不错。The Defense Secretary gave an upbeat assessment of the war so far.国防部长对目前的战事给予了乐观的评价。The tone of the speech was upbeat.这次讲话的语气颇为乐观...