There were 16 kinds of compounds including 5 kinds of ester 8 kinds of alcohols ethylene aldehyde and acetone as the volatile substance of the fruits of the pear progenies .

梨果实 挥发性 物质共检测出5种酯类、8种醇类和乙烯、乙醛、丙酮类共16种化合物。

After transportation and dispersion a concentration field of the volatile toxic substance is then formed in specific aqueous-atmospheric circumstance .

以各种途径进入小河与大江、河口与海湾、湖泊与水库的 挥发性有毒 化学 物质，在特定的水- 气环境中输送扩散形成污染浓度场。

Induced Resistance of Volatile Substance of Trees to Phytophagous Insects

树木 挥 发物对植食性昆虫的诱导抗性

GC-MS Analysis of Volatile Components in Chinese Cabbages Analysis on Microorganism and Flavor Substance in the Course of the Sweet Flour Paste Brewing

大白菜 风味物质的气相色谱-质谱分析甜面酱酿制过程中的菌相分析及风味 成分研究

The volatile components as the major flavor substance play significant role in its flavor composition .

挥发性 风味物质作为酒中最主要的风味 物质，在酒的风味构成方面具重要作用。

The volatile substance content in sludge decreases and the smell debases afteraerobic digestion .

污泥氧化处理使污泥中 挥发性 物质含量降低，臭味减小。

This may be due to one more volatile substance as internal standard resulting in the rapid uniform distribution of samples partial pressure in the injection chamber .

这可能是由于 双内标可使 样品分压在进样室快速均匀分布所致。

Coatings contained more solid component which are compounded when solvent such as propionate can increase performance of paint film and reduce strongly environmental pollution by volatile chemical substance when coatings air drying and solidifying .

采用丙酸酯类溶剂配制的高固份涂料，可大大减少涂层风干和固化时排放的 挥发性化学 物质对环境的污染，且涂膜性能好。

Finally the components of volatile substance by optimized process were analysed and 13 compounds including three key sensory volatile were identified .

再结合 气质 联用仪分析，对优化工艺条件下 香菇 精馏 分中的成分进行分析，检测出包括主要呈味 物质在内的13种化合物。

It is worth for the wastewater treatment containning ammonia ( or other volatile substance ) .

对含氨（或其他 挥发性 物质）的废水处理有参考价值。

The quantitative analysis for the total volatile organic compound ( TVOC ) by gas chromatography is based on the corresponding response signal which is produced from the substance in the measuring instrument . The intensity of the signal reflects the quantity of the substance .

气相色谱测定总 挥发性有机化合物（TVOC）的定量依据是一定量的 物质在检测器上产生一定强度的响应信号，信号强弱反映物质量的大小。

A volatile substance ; a substance that changes readily from solid or liquid to a vapor .

挥发性 物质；易由固体或液体变为蒸汽的物质。

Bacteriostasis of Volatile Organic Compounds From Some Plants On Substance

植物 挥发性 物质的抑菌作用

Pepper is a volatile substance brewed according to the length of time flexibility the general view of the fried pepper taste and easy it boiled a short time .

花椒是 挥发性 物质，须根据熬制时间的长短灵活掌握，一般鉴于花椒炒后易出味，故熬制时间较短。

Chlorine is a volatile element in the acidic media for its activity in chemistry and can be absorbed by alkali substance .

氯的化学性质活泼，在酸性介质中具有 挥发性，由碱性 物质吸收。

The volatile substance contained a little of sesquiterpenes and diterpenoids .

同时含有少量倍半 萜和二萜类 物质。

Olfaction is a physiological reaction of creatures to odour or volatile substance molecules .

嗅觉是生物对某种气体或 挥发性 物质的分子产生的一种生理反应。

In view of different volatile substance in beer PEG column and FID ( hydrogen flame ionization detector ) were selected in the measurement .

针对啤酒酒中不同的 挥发性 物质可选择PEG柱和氢火焰离子化检测器（FID）法进行检测；

The process flow of membrane bioreactor membrane materials and membrane module types are described . The application of membrane bioreactor in treatment of industrial wastewater for removing COD nitride phosphide and volatile organic substance is presented .

介绍了膜生物反应器的工艺流程、膜材料与膜组件形式、工艺特点及其在工业废水处理应用中对COD、氮、磷及 挥发性有机 物的去除效果；

The pretreatment of volatile substance by gas chromatography mainly included headspace sample injection distillation and organic solvent extraction .

应用气相色谱法对啤酒中 挥发性 物质检测的前处理方法主要有顶空进样、蒸馏、有机溶剂萃取3种。

Ion experiment of nonyl phenol and polyvinyl ethyl chloride the method of reflux extraction was founded to be a good way to abstract half volatile organic substance .

通过对水中壬基酚及其聚氧乙烯醚等的提取试验，发现回流萃取是提取水中半 挥发性有机 物的一种很有效的方法。

Effect of Volatile Substance of Larch on the Growth of Ash in Mixed Forest Plantation

混交林中落叶松 挥发性 物质对水曲柳生长的影响