幼虫

The small, free-swimming, ciliated aquatic larva of various invertebrates, including certain mollusks and annelids.

担轮动虫多种水生无脊椎动物，体型很小能自由游动的、有纤毛的幼虫，包括某些软体动物和环节动物的幼虫

The larvae of Corcyra cephalonica, Musca domestica, Spodoptera litura and Spodoptera exigu which could be easily reared on large scale, were used to feed Myrmeleon sagax larvae, and the effect of these four insect diets on development, food digestion and utilization of antlion was studied.

选择4种可规模化饲养的昆虫--米蛾 Corcyra cephalonica 、家蝇 Musca domestica 、斜纹夜蛾 Spodoptera litura 、甜菜夜蛾Spodoptera exigu幼虫来饲养穴蚁蛉 Myrmeleon sagax幼虫，研究这4种饵料对蚁狮生长发育及消化利用的影响。

Trichogramma showed high control efficacy on cotton bollworm eggs after three times of release both in the second and in the third generation bollworm periods. The parasitism on the second and third generation bollworm eggs were 66.0%-70.7% and 76.0%-81.2%, respectively, which were significantly higher than that in the control (second generation: 7.0%-12.3%, third generation: 5.2%-7.4%). And the injury rate of cotton buds and bolls in the second and third generation bollworm were 2.2% and 3.1%, respectively, which were significantly lower than that in the control (second generation:8.5%, third generation: 20.9%). In the second generation bollworm period, number of bollworm eggs or larvae in the Trichogramma released cotton field did not differ to that in the chemically controlled field. But in the third generation, there were significantly less bollworm eggs and larvae in the Trichogramma released cotton field. There were more predators in the Trichogramma released cotton field. These results indicated that cotton boll worm in the transgenic insect-resistant cotton field can he effectively controlled by mass-releasing of T.

结果发现：棉铃虫卵在棉株不同部位的分布差异较大，2代棉铃虫卵主要分布在叶正面、叶背面和茎尖，3代棉铃虫卵主要分布于蕾铃；在放蜂田，赤眼蜂对棉株不同部位棉铃虫卵的寄生率差异较大，2，3代棉铃虫时期对叶正面、叫背面、茎尖、蕾铃的棉铃虫卵寄生率均较高，对叶柄和茎杆处卵的寄生率较低；并以3代棉铃虫时期的寄生率较高；在2，3代棉铃虫时期分别连续释放3次赤眼蜂，对棉铃虫具有很强控制作用，2，3代棉铃虫卵的被寄生率分别为66.0%~70.7%和76.0%~81.2%，均显著高于化防田的自然寄生率（2代：7.0%~12.3%，3代：5.2%~7.4%）；蕾铃被害率分别为2.2%和3.1%，均显著低于化防田（2代：8.5%，3代：20.9%；2代棉铃虫时期，放蜂田和化防田的棉铃虫卵量和幼虫数量差异均不显著，但3代棉铃虫以后，放蜂田棉铃虫卵量和幼虫数量均显著低于化防田，且放蜂田的捕食性天敌数量显著高于化防田。

RESULTS Early-instar larvae could not be identified, but all fourth-instar larvae identified were members of the Culex pipiens complex.

结果 初龄幼虫无法确定，但所有四龄幼虫鉴定成员的库蚊复杂。

Cutworm is am important tobacco pest in Hunan Province, its larvae of first generation injures tobacco plant in April and May, the egg and larvae of 1-3rd instar are sensitive to storm.

小地老虎眼Agrotisypsilon穴Rottemberg雪演是湖南的一种重要烟草害虫，其第1代幼虫于4、5月为害烟株，卵和1-3龄幼虫对大风雨敏感。

"Cysticercus:The larval stage of many tapeworms, consisting of a single invaginated scolex enclosed in a fluid-filled cyst."

囊尾幼虫：许多绦虫的幼虫时期，由在充满液体的囊中单个的肠套头结构成。

Meanwhile we also assayed the variation of the Bt protein in the larval body and dejecta. By voidance of dejecta, the level of Bt protein in the larval body was always lower than that in dejecta alter feeding for 12 h, and the difference between both reached the highest at 24 h after feeding.

实验同时测定了幼虫体内及其粪便中Bt毒蛋白含量的变化，结果表明取食转基因水稻叶片12h后，随着大量取食进入体内的毒蛋白随粪便排出，幼虫体内的毒蛋白含量一直低于粪便中的含量，且在24h时两者差异达到最大。

In this paper, we determined the toxicity of transgenic Betula platyphylla with Bt spider peptide gene. Larvae of Lymantria dispar were feed on leaves of transgenic Betula platyphylla with Bt spider peptide gene, The mortality, reduced ratio of weight, ecdysis index and schedule time of every instar.

本文对转Bt C肽蜘蛛杀虫肽的白桦进行杀虫性测定，对取食对照和转基因植株舞毒蛾幼虫的死亡率、体重降低率、蜕皮指数、幼虫各龄级历期等指标进行了分析，证明外源基因已经成功插入白桦基因组中，并且能够表达杀虫蛋白。

A cyst formed as a result of infestation by larvae of the tapeworm Echinococcus granulosus.

任何一种类似于蝴蝶或蛾子幼虫的各类昆虫的幼虫。

The toxigenicities of TT1 and TT3 during 12 to 18 days were 0.010-0.026 and 0.032-0.041, respectively,and the exuviation index of larvae fed with TT1 and TT3 were 2.969-3.769 and 2.906-3.714,respectively.TT3 is better than TT1 in every index.

取食转基因植株TT1幼虫的蜕皮指数2.969～3.769、毒力为0.010～0.026，取食转基因植株TT3幼虫的蜕皮指数2.906～3.714、毒力为0.032～0.041。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。