挥发的

Through the calculation of the relative volatility under different solvents and conditions for some azeotropic systems, optimum solvents have been chosen, and the influences of temperature and ratio of solvent on relative volatility were discussed.

通过对甲醇－乙酸甲酯共沸体系在不同萃取剂和不同萃取条件下相对挥发度的计算，选择出适宜的萃取剂，并讨论了温度和溶剂比对相对挥发度的影响。

Ethyl alcohol and-2,4-Decadienal were the primary volaties. Some unique and high relative content volatives, playing an important role in the formation of specific aroma of different Chaenomeles sinensis cultivars, were detected from most cultivars.

乙醇和-2，4-癸二烯醛等化合物是光皮木瓜果实内最主要的挥发性物质，绝大多数品种内还含有自己独特的且相对含量较高的挥发性物质，这对构成不同品种光皮木瓜特异香气起到重要作用。

Isolation and identification results of volatile compounds showed that aldehydes, alcohols and ketones were the major volatile compounds formed in the processing of XUANWEI ham, and had the highest relative contents in the 6-month-old, which were 11326.18, 947.29 and 554.95 μg nonane 100g-1, respectively. The result was relevant to intense hydrolysis of intramuscular fat in the pre-processed ham (4-month-old).

挥发性化合物的分离鉴定结果表明：醛、醇和酮类是火腿加工过程中形成的主要挥发性化合物，在6月龄时，它们的相对含量最高，分别为11326.18、947.29和554.95μg壬烷／100 g，此结果与加工前期（4月龄）肌内脂肪发生强烈水解相关。

Conclusion］Taking into account the fact that there is more β-phellandrene and limonene in volatile of fresh needles than that of withered needles, the two compounds are speculated as the primary oviposition stimulants.

结论］β-水芹烯、柠檬烯在新鲜针叶挥发物中的含量远大于在枯萎针叶挥发物中的含量，β-水芹烯、柠檬烯可能是刺激松实小卷蛾雌蛾产卵的主要物质。

Since the inDoduction of the first commercial gas chromatographs in the early 1950s, gas chromatography has advanccd to become onc of most important analytical techniques in the modern laboratory for volatile and semivolatile samples.

自从20世纪50年代初第一台商品化的气相色谱仪推出以来，气相色谱已经发展成在现代实验室中分析挥发性和半挥发性样品的最重要的技术之一。

The yield, chemical components and relative contents of essential oil extracted from Eupatorium adenophorum Spreng by Soxhlet extraction and steam distillation were compared. The volatile chemical constituents of essential soil extracted were analyzed by Gas Chromatography-Mass Spetrometry. The results showed that the constituents of the volatile from the same plant and the relative contents were significantly different due to different extraction methods.

采用索氏提取器及水蒸气蒸馏两种方法对采于不同时间、不同产地的紫茎泽兰Eupatorium adenophorum Spreng挥发性成分进行了提取，比较了两种方法的得油率、化学组成及其相对含量；采用GC-MS联用技术对其中的挥发性成分进行了分析。

IMPLICATIONS: Volatile anesthetics suppress the stapedius reflex in a dose-dependent manner, suggesting that threshold measurements acquired during volatile anesthesia will overestimate the maximum comfort level, which may adversely affect the patient's adaptation to the cochlear implant.

挥发性麻醉药以剂量依赖的方式抑制镫骨肌反射，提示挥发性麻醉期间需要的阈值测定会高估最大舒适水平，这会反向影响患者对耳蜗植入的适应性。

For the four heavy metals in the fly ash, more than 90% of Pb had already been volatilized even with no chlorination agents, and the effect of chlorination agents on the volatilization of Zn was greater than that of Cd and Cu.

在原灰中，Zn的挥发率受氯化剂影响最大，其次是Cd和Cu，在未添加氯化剂的情况下，飞灰中的Pb几乎全部挥发。

The volatilizing punching oil developed with isoalkane possesses excellent volatility,lubricity and anti-corrosion ability,which can apply to metalworking of aluminum fin-stock and copper tube.

以异构烷烃为基础油研制的挥发性冲压油具有优异的挥发性能、润滑性能和防腐蚀性能，可用于铝翅片和铜管的加工。

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。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。