There are twin holes on each side of the instrument.这工具的两边各有一对孔眼。Edgar cast a disdainful look at his twin.埃德加朝他的双胞胎兄弟投去鄙夷的目光。In Caucasian populations, about 1 in every 87 deliveries is a twin birth.在白人人群中, 大约每87个分娩中就有一对双...
二过氯酸烃基酯产物可用作起爆药的敏化剂及作为烷化剂.The hydrocarbon diperchlorate products have utility as detonatable sensitizers for explosives and alkylating agents.研究了聚氯乙烯 - 吡啶树脂催化乙酰苯胺的N - 烃基化作用,反应条件温和,产品收率令人满意.This paper studied the catalyti...
It is necessary initially to classify the headaches into certain types.首先，必须将头痛分为几个类型。Men in the post office classify mail according to places it is to go.邮局里的人员将信件按寄送地点分类.It is entirly proper to classify Kant as a trans...