The technique has been to mutate the genes by irradiation or chemicals.该技术是通过放射线照射或者使用化学方法使基因变异。The after effect occurs only if the additive is present during irradiation.在辐照过程中只有当添加剂存在时才出现后效应.Early lesions can be succes...
The characteristics of construction safety, economy and irradiation utilization of DPR - 3 heating reactor ( Deep Pool Reactor ) are introduced.简介深水池3型 ( DPR - 3 ) 供热堆的结构特点、安全性 、 经济性及辐照应用.Early lesions can be successfull...
二百五十多年前的惠更斯目镜今天还在广泛使用.The Huygens ocular , which dates back over 250 years is still in wide use today.此时场镜上的划痕和小点会在接目镜中看见.Then the scratches and spots on the field lens would be visible at the eye lens.在这两种仪器中, 物镜所成的象都是通...
The rescuers were beaten back by strong winds and currents.救援人员因风浪太大而被迫中断工作。In a warm-up game for the World Cup, Uruguay have beaten England.在世界杯热身赛中，乌拉圭队打败了英格兰队。They would look out through the cracks of their weather-be...
他双手拢在嘴边，大声呼喊黛安娜。He cupped his hands around his mouth and called out for Diane.他冲进一幢房子呼喊求救。He forced his way into a house shouting for help.路过的人听到了他求救的呼喊。Passers-by heard his cries for help....
这些系谱的掺入是更为离奇和无理的.The insertion of these genealogies is the more peculiar and unreasonable.依照我们的学说, 体型的一致是由于祖先系谱的一致.On our theory, unity of type is explained by unity of descent.系谱的分析表明了它有可能 X 相关特征遗传的.Analysis of pedigree...
这个土丘可做我们的掩蔽物.The mound can be used as our screen.蛇会让我尖叫到寻找掩蔽物它们让我怕死了.Snakes make me scream run for cover they scare me so bad.那块灌木丛为游戏提供了掩蔽物.The brush provided a covert for game....
Psychologists are dealing with the problem of maladjusted adolescence and " juvenile delinquency ".心理学家对付着不适应环境的青少年和 “ 青少年犯罪 ” 的问题.Can be period caused after donating blood excuse me maladjusted?请问献血后会不会导致月经失调?Belong to ...