查询词典 lac insect

We Investigated the species of diseases and insect pests, species of natural enemies, distribution and dominant species in export vegetable bases in Shandong Province. Dynamics of main diseases and insect pests were studied.2. We investigated the main control technologies for diseases and insect pests, types and application methods of pesticides.3. Effects of crop varieties, fertilities and cultivation on diseases and insect pests, production and pesticide residues were examined.4. Control effects and application technologies of frequency trembler grid lamps, greenhouse ozone machine and insect-proof net were tested.5. By research, seven biological preparations and twelve chemical pesticides with high activity, low toxicity and low residue were screened.

主要结果如下：1查清了山东省出口蔬菜基地蔬菜病虫害发生种类，天敌种类、分布、并评价上风种；探明了主要病虫发生消长规律。2查清了山东省出口蔬菜基地目前病虫害防治的主要应用技术、施药种类及主要施药方式。3明确了作物品种、肥力、栽培方式等农业措施对病虫发生、产量和农残的影响。4明确了频振式杀虫灯、温室病害臭氧防治机、防虫网等物理措施防治效果及其应用技术。5通过实验，筛选出7种生物制剂和12种安全有效低毒低残留化学农药品种。

Just under this background, studying on the flight mechanism of flapping-wing MAV and sample fabrication from the bionics are conducted in this dissertation. The kinematics equations of insect wings can be acquired by the observation and measurement on the natural insect in researching paper. The geometry model of insect is established by UG technology. The three dimensional grid during the insect moving in the flow field is achieved which adopted grid generation method. The characteristic of lift and drag are attained by simulation the surround flow field during the locomotion of wings, and the flight mechanism of insect is discussed. Based on this study, the physical flapping-wing MAV is fabricated by the acquirable materials and parts of apparatus in existence.

正是在这一背景下，本文从仿生的角度来研究微型飞行器的飞行机理与样机制作；通过查阅文献中对自然界中昆虫翅膀运动的观察与测量，获取了昆虫翅膀的运动方程；采用UG建模技术，建立昆虫的几何模型；采用网格划分方法，获取昆虫在流场运动时的三维网格；运用CFD方法模拟翅膀运动时周围的流场，获取昆虫运动时的升阻力特性，进而来研究昆虫的飞行机理；在此基础上，通过现有可用的材料加工制作仿生微型飞行器。

Lac is a natural substance that is secreted by the insect "Coccus lacca" often referred to as the lac beetle.

虫胶是由一种名为"Coccus lacca"的昆虫，也即是人们平时说的紫胶虫分泌的一种天然物质。

Come forward new formula to count mortality of lac insect.There are obvious linear relationship between individual weight and adult density, between adult density and amount of lac secreted by per Kerria lacca on double logarithmic coordinate axis.

有针对性地选择固虫密度、性比、死亡率、泌胶量、怀卵量、胶被厚、放收比指标，分别评价紫胶虫在不同需求下的经济指标，提出了3个评价公式。

A resinous secretion of the lac insect deposited on trees and used in making shel lac .

紫胶，虫胶由紫胶虫分泌的沉积于树上的树脂分泌物，用于制造虫胶清漆

Lac is a natural substance that is secreted by the insect "Coccus lacca" often referred to as the lac beetle.

虫胶是由一种名为&Coccus lacca&的昆虫，也即是人们平时说的紫胶虫分泌的一种天然物质。

They know little about its anti-insect mechanism and the physiological difference with the non-anti- insect cotton varieties. Therefore, traditional cultivate technology of the non- anti- insect cotton is used to planting anti-insect cotton, without technical guidance and propper training.

他们对其抗虫机理、生理特性上与非抗虫棉的区别几乎不了解，因此在栽培管理上大多仍沿用传统种植非抗虫棉的模式，缺乏相关技术指导与培训。

Leaf-feeders are the major onesJO species,35.71% of the insect pests community, Leaf-suckersare the second ones,6 species ,21.43% of the insect pests community,and insect pests of Coleoptera are the third ones,5 species ,17.86% of the insect pests community, and there are some Hemiptera, Hymenoptera, Diptera,Acarina pests. There are over 16 species of natural enemies from 12 Familias, 8 Ordos ,and 2 Classes.

其中，梨树害虫以鳞翅目Lepidoptera食叶性害虫最多，共10种，占35.71%；其次为同翅目Homoptera吸汁性害虫，共6种，占21.43%；第三大类为鞘翅目Coleoptera，共5种，占17.86%；往后是半翅目Hemiptera、膜翅目Hymenoptera、双翅目Diptera、蜱螨目Acarina的等。

JIADUO INTELLECTURE INSECT MONITORING LAMP utilized the most insects like the blacklight, use the 20w blacklight or 200w writelight as light source, also use 5mm glass as insect crash screen; the light source open in special time to process lure insect, the electricity-road control the long red out to kill the pests. In order to guarantee the killing speed, hand in insect have 2proccesses, the small plate accto pass. When the insects fall into the small plate, through the small plate pass fall into the big plate then into the bag. The materials use the stainless steel, rainproof cap utilize the fly wire design, in order to lure insects easy fall into the collecting plate, the plate's angle is 15·.

佳多牌虫情测报灯利用大多数昆虫对黑光灯发出的光波较敏感的特性，采用20W黑光灯管或200W白炽灯泡作诱集光源，并用5mm透明玻璃板做昆虫撞击屏；诱集光源在设定时间点亮，进行诱集昆虫扑灯，温控电路控制远红外处理器将昆虫杀死，为保证昆虫快速死亡，昆虫处理设置为2个过程；主控制器指令小转盘定时转动，使被远红外线处理过的虫体通过大转盘落入相应接虫袋中；主框架结构全部采用不锈钢制作，灯帽采用飞碟流线型设计；为了使诱集到的昆虫顺利落入滑斗，滑斗滑入角度设计为15°角。

Content of mineral salt has certain relationship with thickness of raw lac, mortality, fecundity and amount of lac secreted by per Kerria lacca.

无机盐含量与胶被厚、死亡率、怀卵量、个体泌胶量有一定关系。

The small blue capacitor has very high chances to go fully shorted compare to electrolytic capacitor which is very rare.

小蓝电容器具有很高的机会去充分地缩短了比较电解电容器，这是非常罕见的。

In the Italian campaigns of 1513 and 1515, when the Swiss won the victories of Novara and Marignan, he acted as army chaplain.

在意大利的运动， 1513年和1515年，当瑞士赢得了胜利，诺瓦拉和marignan ，他担任军队的牧师。