幼虫

As a consequense of eutrophication, Chironomid larvae excessively propagates in water sources, such as reservoir and fresh lake, which induced the 1st instar larvae of Chironomid in source water to enter drinking water treatment system.

水体富营养化使得摇蚊幼虫在水库、湖泊类水源中大量孳生繁殖，直接导致其可以在给水处理系统中出现。

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。

Furthermore, the effect of temperature and contact time on toxicity of chlorine dioxide was observed.

以水厂原水为试验水样，研究了二氧化氯对摇蚊不同龄期幼虫的毒性效果（24 h），并考察了温度和接触时间对二氧化氯毒性效果的影响。

Of the insects in the chrysalis or post larval stage .

昆虫在蛹中，或加速的幼虫期的。

When the time for transformation has come, a larva wraps itself in a cocoon and becomes a chrysalis.

当蜕变的时机到来时，一只幼虫把自己裹进茧中变成了一只蛹。

The solubilized Cry8Ca2 protoxin of 130kDa was activated by chymotrypsin at the enzyme / protoxin ratio of 1∶20.

用原毒素与纯化的毒素对铜绿丽金龟幼虫进行生测，Cry8Ca2原毒素蛋白的LC50为0。

With the adults, larva and eggs of cigarette beetle as experimental objects, the influences of different application dosages of aluminum phosphide and seal time on fumigation effect were compared through fumigation experiment.

方法］以烟草甲成虫、幼虫和卵为试验对象，通过熏蒸试验比较了不同磷化铝施药量及密闭时间对熏蒸效果的影响。

The ovum, the larva ,pupa and development starting point temperature of the whole generation respectively are 8.5℃, 9.8℃, 10.2℃, 10.4℃ in cineraria, effective accumulated temperature 52.7、 75.8、 158.5、

在瓜叶菊上采集的美洲斑潜蝇卵、幼虫、蛹和全世代的发育起点温度分别为8.5℃、9.8℃、10.2℃、10.4℃，有效积温分别为52.7、75.8、158.5、262.2日·度。

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。

The main study contents and result showed followlly:Combined with the former describe of codling moth, the morphologic charater of every stage has been observed carefully and the separation standard of larva in stars has been researched.

主要研究内容和结果如下：结合前人对苹果蠹蛾的描述，对其各虫态的形态特征进行了细致的观察，并对苹果蠹蛾幼虫的分龄标准进行了研究。

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。