幼虫

幼虫变为蛹，然后再变成蝴蝶。

A larva metamorphose into a chrysalis and then into a butterfly .

蜂后产下的每一颗卵都被放入到小的蜡室之中。最初，它们会孵化成像蛆虫那样没有腿的白色物体，这就是幼虫。

Each egg laid by the queen bee is put into a little wax cell , and changes first into a little white thing like a maggot without legs , which is called a larva .

幼虫钻进了地板的缝隙里。

The larvae burrow into cracks in the floor .

虫卵很快孵化成幼虫。

The eggs quickly hatch into larvae .

这种幼虫以小蚜虫为食。

The larvae prey upon small aphids .

当卵孵化后，幼虫取食寄主的鲜肉。

When the eggs hatch the larvae eat the living flesh of the host animal .

幼虫生活在地面上，不像成虫后那么美丽，但是同样会捕食。

The earthbound larvae from which they develop are less pretty , but just as predatory .

由于幼虫对药物有免疫力，因此必须经常喷药。

Because of the immunity of the immature insects , it 's important to spray regularly .

这种代谢物似乎同从暴露到碳氯灵的蚊幼虫所得到的一种物质一样。

This metabolite appeared identical to one obtained from mosquito larvae exposed to isobenzan .

蚕体的性状，亦限于相当的幼虫期或蛹期出现。

Peculiarities in the silkworm are known to appear at the corresponding caterpillar or cocoon stage .

西班牙和英国的研究人员最近发现,大蜡蛾的幼虫可以分解占塑料40%的聚乙烯。

Researchers in Spain and England recently found that the worms of the greater wax moth can break down polyethylene , which accounts for 40 % of plastics ．

很快，新一代的幼虫将钻入地下，开始新一轮的17年周期。

Soon the larvae the 17-year cycle .

一家宠物食品制造商说，他们的一款新产品中含有40%的兵蝇幼虫。据估计，宠物吃掉全球20%的肉类。

It 's estimated that pets consume around 20 % of the world 's meat .

然而，水鼩为了能吃到在河床和溪床上生活的所有昆虫幼虫，不得不到水下觅食。

But the ability to feed on all the insect larvae2 that live on the beds of rivers and streams has driven them to forage3 under water .

工蜂负责给幼虫喂食。几天之后，它们便会长出坚硬的皮肤，这就是蛹。

The larva is fed by the working bees , and in a few days it makes for itself a hard skin , and is called a pupa .

纯素狗粮已有售，但那些注重环保的、想给宠物吃动物蛋白的狗主人们现在可以转向一款叫作Yora的荷兰产品。这个产品中含40%的黑色兵蝇幼虫。

Vegan dog foods are on sale but environmentalist owners wanting to treat their pet to animal protein can now turn to a Dutch product called Yora . The grubs of black soldier flies make up 40 % of it .

赤藓红B对家蝇幼虫生长作用的研究

Study on the Effect of Erythrosin B on the Growth of House Fly Larvae

在幼虫期，CAT活性随龄递减。

In larval stage , the CAT activity declined with the increase of the instars .

旋毛虫新生幼虫差减cDNA文库的构建及其初步筛选

Establishment and Primary Screening of Subtractive cDNA Library of Trichinella spiralis Newborn Larvae

方法应用SDS-PAGE和westernblot对旋毛虫肌幼虫可溶性抗原中的蛋白组分进行研究。

Methods The soluble antigens of Trichinella spiralis muscle larvae were analyzed by SDS-PAGE and Western blot .

抗Bt棉棉铃虫幼虫Bt受体氨肽酶N（APN2）基因克隆

Molecular Cloning of Bt Toxin Receptor Aminopeptidase N From Larvae of Helicoverpa armigera H ü bner Resistant to Bacillus thuringiensis

Eos体外杀伤旋毛虫肌幼虫实验。

Experiment of Eos killing Trichinella muscle larvae in vitro .

NPV用棉铃虫幼虫生产。

The larvae of H. armigera were used for NPV production .

幼虫酯酶同工酶电泳分析显示Est－1位点的C基因的频率随着抗性水平的提高而增加，基因型的多态性也提高。

Esterase zymograms from polyacrylamide gel electrophoresis revealed higher frequency of C allele and more genotype in Est 1 loci in resistance strain .

研究表明，各虫态对~（60）Co辐照敏感性的顺序依次为：老龄幼虫>蛹>成虫；

The results showed that the sensitivity order of different stages and sexes to 60Co - γ ray was old larva > pupa > adult ;

感染后前7d幼虫主要分布于肝和肺，感染后第3d起幼虫见于脑内，第7d后幼虫主要分布于脑和骨骼肌。

The larvae distributed mainly in the brain and musculi skeleti 7 days after infection .

末次免疫后1周，每只小鼠攻击感染200条旋毛虫感染性肌幼虫（ML），感染后5周用消化法检查ML负荷。

Two weeks after the final immunization , the animals were challenged with 200 T.s infective muscle larvae ( ML ) per mice .

同期滞育的裸露幼虫SOD、CAT和POD酶活性较结茧幼虫略高，但二者的酶活性没有显著的差异性。

There was not a significant difference of SOD , POD and CAT activity between no-cocooned larvae and cocooned larvae at the same diapause stage .

Zn~（2+）对缢蛏胚胎和幼虫的效应及EDTA解毒作用

Effects of zn ~ ( 2 + ) on embryonic and larval developments of Sinonovacula constricta and detoxification of EDTA

目的研究旋毛虫成囊前期幼虫抗原（pre－encystedlarvaantigens，PELA）的组分和诊断价值。

Aim To study the diagnostic values of the pre-encysted larvae ( PELA ) of Trichinella sPiralis .