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The paper described how the leaves of Brasenia schreberi Gmel., an economic aquatic plant and a Chinese favourite dish, were destroyed by the Chironomid larvae, especially those of Cricotopus trifasciatus panzer, and the characteristics and their growth environment of that species were introduced in detail as well.

莼菜为长江中下游地区民众喜爱的菜肴，具有较高的营养价值。本文重点叙述主要危害莼菜的三带环足摇蚊Cricotopus trifasciatur幼虫，记述了这种幼虫的特征和生长环境以及这类幼虫危害莼菜的过程和结果。

As for the severity of the surface water pollution, water ecological balance was break and aquatic community had altered, tolerance species such as Chironomid larvae and Limnodrilus increased a lot in the water.

在我国，由于地表水污染严重，原有的水生生态平衡遭到破坏，摇蚊幼虫、水蚯蚓等耐污种类数量猛增，导致以这类水体作为供水水源时，出现水生动物污染城市供水系统的问题。

The result shows the mean accuracy of classification rate is up to 95.41% for freshwater plankton images, such as chironomid larvae, cyclops and harpacticoida.

通过对红虫、剑水蚤、猛水蚤样本进行分类试验证明，平均识别准确率达到95.41%，验证了该方法的有效性。

The inactivation of chironomid larvae in water supply systems was experimented with environment degradable vitamin K3,its main component 2-methyl-1,4-naphthoquinone,and their congener menadione triamintriazine bisulphite.

采用易被环境分解的维生素K3、其基本成分β-甲基萘醌和同系物三氨基三嗪甲萘醌亚硫酸盐，对在给水系统中出现的4龄摇蚊幼虫进行了杀生实验。

Trophic components involved were milkfish, zooplankton, phytoplankton, chironomid larvae, benthic algae, supplemental feed and detritus.

本研究将生态系中的生物分为七个单元，分别为虱目鱼、浮游动物、浮游植物、红筋虫、底藻、饲料及腐屑。

Therefore, parasitization of Macrocentrus cingulum has no significant effect on the immune reaction of the hemcoytes of host, Ostrinia furnacalis larvae.

说明腰带长体茧蜂的寄生对寄主幼虫血细胞的免疫反应并没有产生明显的影响。

Billion nematodes/667m2 of use amount can keep the damage rate of beet seedlings under 15.1%, this result was obviously higher than those of chemical insecticides. In treated field. the population of cockchafer larvae was significantly reduced, and the beet yield was 351kg/667m2 enhanced.

线虫防治田与对照田相比，能显著的控制蛴螬的种群数量，使甜菜每667m2增产351kg，表明利用线虫防治甜菜地蛴螬的可行性，为地下害虫无公害防治开辟了新途径。

The age of five larvae take two days and nights of time, in order to form a cocoon.

需要四个阿姨，站在四个不同的方向同时拉。

Copepod larvae also formed an important component.

此外，桡足类幼体也是底边界层动物的重要组成部分。

Based on the spatial temporal characteristics of interaction of pine caterpillar larvae population,a three dimensional correlogram and spatially mixture regression model was proposed.

对马尾松毛虫幼虫密度分布的预测采用了时空自回归加时空趋势面的形式，预测的马尾松毛虫幼虫的平均密度和实测的平均密度在时空变化的趋势上是完全一致的，而且预测结果给出了马尾松毛虫幼虫密度分布的图象形式，给防治决策提供了方便。

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。