细胞的这种向里推进标志着原肠胚形成的开始.This pushing - in of cells marks the start of gastrulation.外胚层囊胚的外层,在原肠胚形成之后生后外胚层组织.The outer layer of a blastula that gives rise to the ectoderm after gastrulation....
"Why didn't you appoint Ron twelve months ago?"—"Good question."“你为什么12个月前不任命罗恩呢？”——“问得好。”He promised to appoint an AIDS czar to deal with the disease.他许诺任命一位艾滋病大使来应对这种疾病。The Prime Minister has the power to dismiss ...
磨光机磨块采用金刚石磨料制成, 硬度极高,磨削锋利.The grinding block made of carborundum abrasive, is very hard and sharp.以修削平面为主,阐述了角向磨光机在机械加工中的运用.This text introduced the exertion of angle grinder for machinery manufacture.我们可以特别设计宝石磨光机,以符合你们...
如果你不注意的话，孩子们往往会不重视他们的家庭作业。If you are not careful, children tend to neglect their homework.这老人似乎一点也不重视这个问题.The old man didn't seem to attach any importance to the question.对方不重视我方的警告.The other side paid no attention ...
本文研究了V波段四倍频器的设计和研制方法.This thesis presents the design and manufacture of a V - band frequency quadrupler.这种倍频器可以满意地用作为某型测速雷达的输出级.This frequency multiplier may be used satisfactorily as the output stage some velocity radar...
This material is variously termed ash, clinker, cinders or slag.这种材料有不同的名称,如灰 、 炉渣 、 煤渣或矿渣.All bands slag off their record companies. It's just the way it is.所有乐队都会臭骂自己的唱片公司，都这样。In some cases the slag can be dispose...
Physical and ideological barriers had come down in Eastern Europe.物质和意识形态上的障碍在东欧已不复存在。Children's literature is an ideological battleground.儿童文学是各种意识形态交锋的战场。Some have minimized the importance of ideological factors.有...
Tom was a lanky boy with long skinny legs.汤姆是一个腿很细的瘦高个儿。He was six feet four, all lanky and leggy.他身高6英尺4英寸，瘦高个儿，大长腿。a tall, lanky teenager身材瘦长的少年He was a tall, lanky man with iron-grey hair.他是个瘦高个子，一头铁灰色头发。a lanky figur...
The fairy waved her wand and the table disappeared.那仙女魔杖一挥，桌子不翼而飞。People can't expect him to wave a magic wand.人民不能指望他创造奇迹。You can't simply wave a wand and get rid of nuclear weapons.你们不要以为魔杖一挥便能消除核武器。Blinking ...