查询词典 Volatiles

Frass of the beetles,both sexes of adults have a little attractive ability to the beeltes, but much lower than the volatiles from host trees.

验证虫粪和雌雄成虫活体本身都有一定的引诱能力，但比树体挥发物要差很多。

But with increasing temperature,homolysis is enhanced,especially for PPTA.When the temperature reaches 1000℃,PPTA takes higher mass loss than PMIA.In both inert gas and air,mass spectra of volatiles are obtained,and PMIA and PPTA mostly show the same mass signals.

在低降解温度时，采用水解机制解释了PMIA纤维三步的失重过程和较低的耐热性能；而随着温度升高，均裂机制增强，导致PPTA纤维在1000℃时的失重大于PMIA纤维。

The role of plant volatiles in host location behavior of the parasitoid was discussed.

对植物挥发物在棉铃虫齿唇姬蜂寻找寄主中的作用进行了讨论。

This suggested the important function of plant volatiles in host searching of natural enemies of the phytophagous.

再次证明，植物挥发性次生化合物在害虫及其寄生天敌搜寻寄主的过程中起到重要的作用。

An efficient protective material for metal relics was studied in the paper. Volatile rust proofing sieve, vapor inhabitability of mass loss and closed space volatile weight-loss methods were adopted to study many monocomponent volatiles corrosion inhibitors . The best VCI was chosen from them. By mixing, the two composite VCIs were made for iron and copper.

本研究通过采用气相甄别法、失重法和封闭空间挥发减量法实验筛选单组分气相缓蚀剂并进行复配实验，分别制备出铁质文物和铜器文物用的复合气相缓蚀剂，其中铁质文物复合气相缓蚀剂Ⅰ由有机胺A和乌洛脱品以质量比1：1组成，其缓蚀率为96.5％，铜器文物复合气相缓蚀剂Ⅱ由BTA和酚类W以质量比1：1制成，其缓蚀率为94.5％。

Liu SH%Norris DM%Lyne P Volatiles from the foliage of soybean, Glycine max, and lima bean, Phaseolus lunatus: their behavioral effects on the insects Trichoplusia ni and Epilachna varivestis 10.1021/jf00086a050 Journal of Agricultural and Food Chemistry , 1989,null

杜永均%严福顺植物挥发性次生物质在植食性昆虫，寄主植物和昆虫天敌关系中的作用机理昆虫学报， 1994，(2)杜永均%严福顺%韩心丽%张广学大豆蚜嗅觉在选择寄生植物中的作用昆虫学报， 1994，4

A two-choice olfactometer was developed to determine the behavioural responses of adult cotton bollworm to plant volatiles.

发展了一种选择性嗅觉仪，用这种嗅觉仪测定了棉铃虫成虫对萎蔫的枫杨叶、新鲜的棉花叶、棉花花蕾、玉米叶及玉米花丝气味的反应。

The mixture from butyl acetate and propyl propionate was the most attractive to A. glabripennis in the olfactometer when these volatiles were mixed each other.

而这些挥发物相互混合后，以丙酸丙酯和乙酸丁酯的混合物效果最为明显，在嗅觉仪中对光肩星天牛有较强的引诱作用。

This paper determined the olfactory respones of Tetranychus viennensis to different plants odors with "Y" olfactometer and petri-dish, volatiles from leaves of different plants were absorbed with SPME and analyzed with GC-MS (gas chromatograph-mass spectrometer). At the same time, the effects of different host plants on the development of Tetranychus viennensis were determined by means of the leaf-dish rearing method , in addition, the contents of some chemicals in the leaves of different plants were also determined.

本文用"Y"形嗅觉仪法和培养皿法测试了山楂叶螨Tetranychus viennenis Zacher对不同植物气味物质的嗅觉反应，并利用固相微萃取SPME吸附、用气相色谱—质谱联用仪GC-MS(gas chromatograph-mass spectrometer)分析了不同植物叶片的挥发性物质成分：同时采用海绵水盘法饲养山楂叶螨，研究了不同植物对山楂叶螨生长发育的影响，并测定了不同植物叶片中一些生化物质的相对含量。

The "Y" type olfactometer test showed that sex pheromones in female solvent extract and female volatiles were both attractive to the males, indicating the presence of sex pheromone in female collections. There was no significant difference in attractive effect between two methods of collection.

Y型嗅觉仪测定表明，雌蚊溶剂浸提和空气收集法获得的提取物对雄蚊有引诱作用，且二者引诱效果无显著性差异(P=0.655)，雄蚊对雄蚊提取物无选择性，说明2种方法均从菊花瘿蚊雌蚊提取到了性信息素。

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