查询词典 mutate

P. infestans ranks highest in the evolutionary potential and it can easily mutate its Avr genes and thus overccome the only promising solution for late blight control is potato plants carrying corresponding R genes.

致病疫霉菌是一种进化潜力非常高的病原，可以快速突变本身的非毒力基因，因而造成对应的马铃薯抗病基因的失效。

Some viruses mutate fast enough to reinfect people after recovery or to keep the immune system from fighting them off.

有些病毒突变十分快速，在复原之后会再次感染，或让免疫系统无法击退它们。

Some viruses mutate fast enough to reinfect people after recovery or to keep the immune system from fight ing them off.

有些病毒突变十分快速，在复原之后会再次感染，或让免疫系统无法击退它们。

In the U.S., cases of polio are now extremely rare, and ironically, are almost always caused by the Sabin vaccine itself - being live, the virus can mutate to a stronger form.

在美国，小儿麻痹症病例目前极为罕见，具有讽刺意味的，几乎都是由沙宾疫苗本身-活而引起，该病毒可以发生变异，一个更强大的形式。

A small town, desperate to recover from hard economic times, is under threat when voracious Snakehead fish mutate and survive previous lake chemical poisonings.

一个为从经济危机中恢复而铤而走险的小镇，时下正处于在化学有毒物质污染的湖泊中幸存下来，突变的凶残的黑鱼威胁下。

What if you could smash them, blast them, squish them or mutate them?

如果您可以粉碎他们，爆炸，挤压他们或发生变异，他们呢？

This technology is suitable for various microbes; it can also be used compositely with other methods to mutate microorganisms.

这项技术适用于多种微生物，也可以和其它方法结合对菌种进行复合诱变，同样离子束介导转基因技术不仅适于植物细胞，对微生物细胞也是可行的。

In order to preserve the varieties of the swarm and avoid to be in premature convergence,a Particle Swarm Optimization algorithm based on the differential evolution mutation is proposed.The new algorithm uses the particle aggregation quality to judge that if the particles in the swarm are congregative so much,then apply the differential evolution to mutate the self prevenient best position of each particle,in order to realize the aim of preserving the varieties of the swarm.

为了保持粒子种群的多样性而避免发生&早熟&的问题，提出一种基于差异演化变异的粒子群优化算法，该方法通过粒子聚集性判断如果粒子群中的粒子过于聚集，则使用差异演化算法对PSO算法中各个粒子的自身历史最佳位置进行变异，以实现保持粒子群种群多样性的目的。

The new algorithm uses the particle aggregation quality to judge that if the particles in the swarm are congregative so much,then apply the differential evolution to mutate the self prevenient best position of each particle,in order to realize the aim of preserving the varieties of the swarm.

该算法对于单调函数、严格凸或单峰函数，能在初始时很快向最优值行进，但在最优值附近收敛较慢。对于多峰函数，则更容易出现所谓&早熟&现象，即局部收敛[3]。粒子群算法出现&早熟&现象的主要原因是缺乏种群多样性。

When it surpasses the removal ability of antioxidation , it .causes chain reactions of peroxidation, resulting in serious damnification of organism membrance and microcycle, even collapse. Free radicals and product of their metabolism make polyamylose divide chains, unsaturated fat acid peroxide, protein tangle, RNA and DNA rupture and mutate.

当其超出体内抗氧化酶的清除能力时，引起脂质过氧化链式反应，导致生物膜及微循环严重损伤，甚至崩溃，自由基及其产物使多糖聚解，不饱和脂肪酸过氧化，蛋白交联，RNA、DNA断裂、突变等。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。