Don't be too downhearted. There's always a way.别太悲观了，总有办法的。Max sighed, sounding even more downhearted.马克斯叹了口气，听上去更沮丧了。We're disappointed by these results but we're not downhearted.我们对结果感到失望，但是并未丧失信心。...
Don't be too downhearted. There's always a way.别太悲观了，总有办法的。Max sighed, sounding even more downhearted.马克斯叹了口气，听上去更沮丧了。We're disappointed by these results but we're not downhearted.我们对结果感到失望，但是并未丧失信心。T...
The products were analyzed simultaneously using ethyl benzoate ( EB ) as internal standard.以苯甲酸乙 酯 为内标物,一次性同时分析了塔釜产物中各组分含量.The crude, wet benzoate ( 118 grams ) was dissolved with reflux in 1 , 400 ml methanol.将粗制 、 湿的苯甲...
The sewage reticulation system is used everywhere.网状污水渠系统无处不在。A new type solid reticulation positive grid was studied.介绍了一种新型立体网状正极板栅.Design 、 implement and manage process control systems, power reticulation systems and ...