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insects相关的网络例句

查询词典 insects

与 insects 相关的网络例句 [注:此内容来源于网络,仅供参考]

Insects From the onset of the HIV epidemic, there has been concern about transmission of the virus by biting and bloodsucking insects.

昆虫 从HIV流行开始,一直都有对HIV会通过吸血类昆虫叮咬而传播的担忧。

Bristly fly whose larvae live parasitically in caterpillars and other insects important in control of insects .

有的苍蝇,其幼虫寄生在毛虫或其它昆虫的身上;在控制有害昆虫方面很重要。

For most piercing-sucking insects, they will secrete gell saliva and watery saliva when they feed on plants. The gell saliva will be secreted at the early stage of feeding to form salivary sheath, which is supposed to surround and protect the stylet. This saliva can help piercing-sucking insects to feed on plants directly and indirectly. Meanwhile, the watery saliva contains many components like pectnase, cellulose, polyphenol oxidase, peroxidase, alkaline phosphatase, sucrase, etc. These components can help piercing-sucking insects in plant tissue penetration, food digestion, detoxification of plant secondary substances and break-down of plant defence reaction.

对多数刺吸式昆虫而言,他们取食时会分泌胶状和水状两种唾液,其中胶状唾液会在取食早期分泌形成唾液鞘来围绕并保护口针,通过直接和间接的作用来帮助取食;而水状唾液中则包含了果胶酶、纤维素酶、多酚氧化酶、过氧化物酶、碱性磷酸酯酶、蔗糖酶等组分,来帮助刺吸式昆虫对植物穿刺、消化食物、解毒次生物质并破坏植物的防御反应。

Videlicet, this sequence represents the accountability of the 11 features in distinguishing insects on the level of species. According to the above results, some features varies not remarkably on all levels, such as Lobation, Shape-Parameter etc. This shows that such kind of features are nearly same in all species of insects, and can represent the feature suitable to distinguish all insects from other classes of animals. On the other hand, they are not suitable as distinguishable features of levels which lower than insect Class.

从结果可以看出,有些特征在各个分类阶元上差异均不是很显著,如叶状性、形状参数,说明此类特征在昆虫中具有较强的共性,可以代表整体昆虫的特征,而不适合于作昆虫纲下阶元的分类特征;有些特征在各分类阶元下的差异始终比较显著,如周长、面积等,说明这些特征适合在各分类阶元上作为昆虫的分类特征。

Seven star 瓢 insects, small red 瓢 insects and different color 瓢 all of insects are the useful insects which preys for food aphid and scale insect.

七星瓢虫、小红瓢虫和异色瓢虫都是捕食蚜虫和介壳虫的益虫。

Is set to "keep insects, eating insects, insects play, watch insects, with insect," as one integrated project, there are broad prospects for development.

是集"养昆虫、吃昆虫、玩昆虫、看昆虫、用昆虫"为一体的综合性项目,有着广阔的发展前景。

The paper reviewed the host selection mechanisms and rules of xylophagous insects and their application foreground in forest health evaluation. According to the rule that some secondary xylophagous insects always accompany with trees which are sub-healthy or unhealthy, ideas of diagnosing and evaluating forest health betimes using xylophagous insects were posed. Mathematical models would be established based mainly on interactions between quantity of xylophagous insect populations and status of forest health, interspecific interactions (community structure, biodiversity) and environmental factors were also added as supplementary parameters, in order to quantitatively analyzing and comprehensively evaluating forest health and its developing trend.

本文综述了蛀干昆虫对寄主植物选择机制和规律的国内外研究进展及其在森林健康评价中的应用前景,根据蛀干昆虫中次期性种类总是与亚健康和衰弱林木相伴的规律,提出了利用蛀干昆虫早期诊断和评价森林健康的思路,以蛀干昆虫种群数量与林木健康状况的相互关系为主,辅以物种间相互作用关系、环境因子等建立数学模型,定量分析和综合评价森林健康及其发展趋势。

The majority of the insects feeding on or parasitizing in Picea crassifolia were monophagous or oligophagous; the minority of them were polyphagous. The insects feeding on or parasitizing in the bush layer and grass layer were largely polyphagous, a few were oligophagous, the oligophagous insects were very few.

在青海云杉寄生或取食的昆虫多数种类为单食性或寡食性,少数种类为多食性,取食或寄生于林下灌木层和草本层的昆虫大多数为多食性,少数种类为寡食性,较少为单食性。

In the practice it plays an important part in insect surveys, the choice of grain method, the improvement of grain storage level, the extension of storage time and the delay of grain quality deterioration. 1 Research on stored product insects in large warehouse 1.1 Community composition and structure analysis of stored product insects in large warehouse By means of GJ89 type probe trap investigation of stored grain insects and analysis of community composition and structure of large warehouse were carried out in Chongqing Beibei State Grain Reserve Depot. The results showed that there were main Lipocelis botrychophilus、 Cryptolestes ferrugineus、 Tyrophagus putrescentiae and Sitophilus zeamais etc in large warehouse

高大平房仓储粮昆虫生态学研究 1.1 高大平房仓散装储粮昆虫群落组成及结构分析使用GJ89型粮虫陷阱检测器对中央储备粮重庆北碚直属库高大平房仓储粮昆虫进行系统调查,并对其群落组成及结构进行了分析,结果表明高大平房仓储粮昆虫主要有书虱Lipocelis botrychophilus、锈赤扁谷盗Cryptolestes ferrugineus、腐食酪螨Tyrophagus putrescentiae和玉米象Sitophilus zeamais等4类,其中书虱为绝对优势种群;在粮堆垂直方向0~50cm 4类昆虫发生最多,100~150cm发生最少;4类昆虫在粮面0~50cm丰富度、优势度、多样性及均匀度4项指标均高于50~100cm和100~150cm,水平方向6个区域各项指标差异不大。

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。

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