查询词典 Volatiles

The selective response of Holotrichia oblita to different plant volatiles (1) By steam distillation and dichloromethane, in the Y-tube olfactometer bioassay, the crude extract from castor-oil plant leaves was obviously attractive to female and male of Holotrichia oblita than cotton, Abutilon theophrasti Medic, control dichloromethane.

该结果表明，蓖麻叶片粗提物中含有引诱华北大黑鳃金龟的化学物质。(2)华北大黑鳃金龟成虫对8种化合物的嗅觉仪行为反应结果表明，无论对雌虫还是雄虫，肉桂醛、邻苯二甲酸二丁酯、苯酚、香草醛、苯甲醛的诱虫活性显著高于顺-3-己烯醇。

Major conclutions from this study can be summarized as following:1. On mineralogy, rutiles, apatites, epidotes and vein minerals from UHPM rocks were firstly and systematically studied, by detailed petrography and mineral-chemistry investigation, some mineral or mineral assemblage with special composions or texture were firstly found in UHPM rocks from Sulu-Dabie, for example, corrudum, magnesite, high-Ti biotite and garnet were found as inclusions in rutiles from eclogites, Nb-Fe rutile and zoned Si-Y apatite were found in gneiss, epidote / allanite with euhedral zones like magmatic genesis were found in elogites and gneiss, a lot of minerals with high REE, HFSE, LILE and volatiles were found in veins of gneiss.

在矿物学方面，首次较为系统地研究了超高压变质岩中的金红石、磷灰石、绿帘石等副矿物，并通过详细的岩相学和矿物化学研究，首次在苏鲁-大别超高压变质岩中发现了一些具有特殊成分/结构的矿物或矿物组合，如在榴辉岩金红石中发现了刚玉、菱镁矿、高钛黑云母和石榴石矿物包裹体，在片麻岩中发现了Nb-Fe金红石和具有自形环带结构的高Si-Y磷灰石，在榴辉岩和片麻岩中发现了具有类似岩浆成因的自形生长环带结构的绿帘石/褐帘石，在片麻岩的脉体中发现了大量富含稀土元素REE、高场强元素HFSE(Nb、Ta、Zr、Ti)、大离子亲石元素LILE(K、Th、U、Sr、Ba)，以及挥发性组份(CO_2、F、P、S)的特殊矿物，丰富并提升了超高压变质岩的矿物学研究。2。

It was considered that during UV-B irradiation, the release of new volatiles and degradation of volatiles existed in the leaf took place coinstantaneously.

说明在UV-B处理或黑暗条件下，新的挥发性物质的释放和原来存在于鲜叶中的挥发性物质的降解是同时进行的。

The major volatiles of Sansa were E-3-Hexen-1-ol (14.74%), Formic acid and hexyl ester (9.52%) and they were all more than that in other varieties relatively. The major volatiles of Red Chief Delicious were 4-methyl-1, 3-pentadiene (16.37%) and Z-3-Hexen-1-ol, acetate (10.27%) and were also more than that in other varieties.

珊夏枝条挥发物主要成分（E-3-己烯－1-醇、甲酸己酯）的相对含量(14.74%，9.52%)均多于其他品种；首红枝条挥发物主要成分（4-甲基－1，3-戊二烯、乙酸叶醇酯）的相对含量(16.37%，10.27%)均多于其他品种。

In this paper,the behavioral,physiological, ecological adaption mechanism of H.armigera and H.assulta to their common host plant tobacco were studied comparatively,and the main results were summarized as follows:Electroantennogram response of adult to tobacco volatiles:(1) H.armigera and H.assulta elicited similar EAG responses to the tested 20 tobacco volatiles;both of them elicited significantly more sensitive to green leaf volatiles,aliphatic and aromatic compounds, than to monoterpene,sesquiterpene,heterocyclic compounds under lower concentration; while the similar EAG responses under higher concentration were detected,but most of them were not significantly different with each other.

本文从行为、生理和生态适应三个方面，对棉铃虫和烟夜蛾与烟草间的互作进行了比较研究，主要结果如下：成虫对烟草挥发物的EAG反应：(1)两种夜蛾对测试的20种烟草挥发物均可产生EAG反应；低浓度下对绿叶气味、脂肪族、芳香族化合物的EAG反应显著高于单萜类、倍半萜类和杂环化合物；高浓度下的EAG反应也表现出相似的总体反应趋势，但多数反应值间的差异未达显著水平。

The present paper mostly concerned was the T. piniperda which was discovered in Yunnan Province, the research advances on Pinus yunnanensis volatiles and using the volatiles to trap T. yunnanensis were reviewed, the successful experiences of using plant volatiles to monitor and control Scolytidae was briefly summarized.

针对云南纵坑切梢小蠹，综述了云南松挥发性化学成分的研究现状及利用各种挥发性成分诱集云南纵坑切梢小蠹的研究进展，同时简要介绍了国内外其他地区利用植物挥发性化学物质监测和防治小蠹类害虫的成功经验。

The volatiles existed at higher amounts in bound form than in free form. Compared with uncased tobaccos, free form volatiles showed a decrease after casing process, while bound volatiles showed an increase.

该研究结果对烟草香味成分分析、糖苷结合态香味物质的合成和应用、卷烟加香加料技术都具有参考价值，同时对优化工艺质量也有一定指导意义。

In Gravitarmata margarotana oviposition selection period, the total contents of volatiles in healthy needle branches were higher than healthy cone branches, and the total contents of volatiles in red cone tree were lower than green cone tree.

在油松球果小卷蛾危害期，虫害果枝中挥发物的含量均高于健康果枝，油松健康果枝挥发物的含量在化学诱导后明显增加，化学诱导与植食性昆虫取食对油松产生了相似的诱导反应。

Moreover the synthetic inducing effect of mixed volatiles was more than the sum of individual volatiles.

从诱导酶活增加的效果来看，在这4种混合挥发物中，MeJA+cis-hexenal的诱导能力最高。

This important text covers how insects produce pheromones and how they detect pheromones and plant volatiles.

这份重要的正文盖住昆虫怎样生产讯息素和他们怎样识别讯息素和植物volatiles。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失