查询词典 manna insect

According to the change of the enemy\'s quantity and the qualitative theory of the differential equation, we research the spruce aphides and its predator system. At the same time, we discussion the spruce aphid multiplication model when the natural enemy quantity is a certain value and the periodic oscillating model whose the quantity of the natural enemy changes along with the time. Obtains the stability condition of the balance point and the limit-cycle existing condition, the system presents the dissipative structure\'s character. Finally it explains that this theoretical analysis has certain practical significance regarding the preventing and controlling harmful insect.

第五章，松毛虫与其天敌的关系是食饵和捕食者的关系，根据天敌数量的变化，利用微分方程定性理论，研究松毛虫与天敌系统，讨论天敌数量为一定时的松毛虫增殖模型和天敌数量随时间变化的周期振荡模型，得到正平衡点全局稳定性和极限环的存在条件，通过计算机模拟，说明周期振荡的捕食模型能够呈现典型的时间耗散结构特征，对于防治害虫有一定的实际意义。

The cowpea trypsin inhibitor gene and the bar gene discovered in recent years are found to be used for insect-resistant and anti -herbicide respectively because of their broad spectrum and are used in gene improvement of many crops widely now. Using the peanut Arachis hypogaea L. cv. Shanyou 523 and Arachis hypogaea L.

在多种抗植物虫害、耐除草剂基因中，豇豆蛋白酶抑制剂基因(cowpea trypsin inhibitor，CpTI)和耐除草剂基因因其抗虫和耐除草剂的广谱性而成为效果最为理想的外源基因，被广泛地应用于农作物抗虫、耐除草剂基因的改良上。

The first segment of the leg of an insect or other arthropod, joining the leg to the body .

基节昆虫或其他节肢动物的腿的第一节，它使腿与身体相连

Yellow powder worm, scientific name Tenibrio molitor Linne, Arthropoda,Insects, Coleoptera, draft step beetle department , powder beetle belong to the insect, commonly called as the bread worm, wheat bran worm, lives in the American state originally.

黄粉虫，学名Tenibrio molitor Linne，属于节肢动物门、昆虫纲、鞘翅目、拟步甲虫科、粉甲虫属昆虫，俗称面包虫，麸子虫，原产美州。

The artichoke gall, on the other hand is caused by an insect.

胆的朝鲜蓟，是由昆虫引起的。

For children's teeth, if suffering from ascariasis, should use insect repellent substances such as intestinal-ching, Chinese medicine Quisqualis, betel nuts, such as drug treatment.

对于儿童磨牙，如果患有蛔虫病，应使用驱虫药物如肠虫清，中药使君子、槟榔等药物治疗。

The activities of carboxylesterase、glutathion-S-transferase and acetylcholinesterase per insect increase greatly and the properities of esterase and acetylcholinesterase change also throughout larval development from 1-day-old to 4th instar. The affinity for Asch and the sensitivity to insecticide of acetylcholinesterase in 3rd instar larvae are significantly lower than that in 4-day-old larvae.

幼虫从1日龄生长到4龄时，单头幼虫的羧酸酯酶、谷胱甘肽转移酶、乙酰胆碱酯酶活力急剧增长，4龄幼虫相对于1日龄幼虫，HJ-R、HD-S上述3种酶系的活力分别增长了148、172.6、65.6倍和203、60.9、77.4倍；生长过程中，全酯酶、乙酰胆碱酯酶的性质也发生变异，特别是从4日龄生长到3龄时，乙酰胆碱酯酶的米氏常数、双分子速率常数均发生明显的改变，3龄幼虫乙酰胆碱酯酶对底物的亲和力以及对杀虫剂的敏感性显著低于4日龄幼虫。

The sex attractant can be used for trapping the male and for the insect survey, which would provides a new method and technique for the integrated control of H. artemisiae.

此性诱剂可用以田间诱捕和虫情监测，为沙蒿木蠹蛾的综合防治提供一条新的方法和技术。

Tussah is complete it is abnormal insect, classics egg, larval, aurelian, imago wants in lifetime the growth phase that 4 configuration and physiology function differ completely.

柞蚕是完全是变态昆虫，一生中要经卵、幼虫、蛹、成虫4个形态和生理功能完全不同的发育阶段。

This concept insect killer machine works autonomously, leaving the user to relax from fretting about their work to be done.

这一概念的昆虫杀手机器厂自主，使用户放松从担心他们的工作要做。

In this document, because it requires that you have a goodunderstanding of the matching engine's internals.

本文并不涉及优化，因为那要求你已充分掌握了匹配引擎的内部机制。

If you find out, what they mean, you will take a place in Credits.

如果你发现，他们的意思，你将采取的学分进行。