醛类

Formaldehyde, acetaldehyde and acrolein are common aldehyde in the environment.

甲醛、乙醛和丙烯醛均为环境中常见的醛类。

Ginkgo wood vinegar was a kind of quite complicated compounds, which include water, organic acid, phenol compound, alkanet compound, alcohol compound and so on.

5银杏木醋液是一种组成成分相当复杂的混合物，主要成分是水，其次是有机酸、酚类、醛类、酮类、酯类及其它杂环类物质等。

Bamboo vinegar have above 100 kinds constituents. Which include water, organic acid, phenol compound, alkanet compound, alcohol compound and so on.

竹醋液主要成分是水，其次是有机酸、酚类、醇类、醛类及其它杂环类等100多种物质。

Through chemical analysis, muskrat of excretive of the cell outside body is sweet as sweet as natural excretive muskrat all contain annulus seventeen alkyl ketone, muskiness ketone and cycloalkanes kind, ester kind, mellow kind with aldehyde kind wait for composition.

经过化学分析，体外细胞分泌的麝鼠香和自然分泌的麝鼠香均含有环十七烷酮、麝香酮以及环烷类、酯类、醇类和醛类等成分。

Results: SPME was effective to analyze the flavor substances in Portunus trituberculatus and Squilla Oratoria, 20 and 15 main volatile compounds were identified respectively by comparing their mass spectra with those contained in the NIST mass spectral database; among these compounds most of them were carbonyl and alcohols.

结果：固相微萃取技术有效提取了三疣梭子蟹和口虾蛄肌肉中的呈味物质，经过NIST质谱数据库和文献对照，分别确定了20种和15种主要呈味物质，大多是一些酸类、酯类、醛类、醇类等化合物。

It can be widely used to get rid of toluene,dimethylbenzene,and hydroxybenzene,and ester,and hydroxyketone,and aldehyde as well as bad smell and other gases containing small heavy metal.

可广泛用于处理含有甲苯、二甲苯、苯等苯类、酚类、酯类、醇类、醛类等达式有机气体及恶臭气体和含有微量重金属的低浓度、大风量的各类气体。

The fragrance substances inpumpkins were primary esters, aldehydes, terpenoids and volatile acid et al. The most of flavor substances were easy evaporable.

构成南瓜香气的香味物质成分主要是酯类、醛类、萜类、醇类、酮类及挥发酸等，绝大部分风味物质含量低，又易挥发。

Three results are obtained by an orthogonal experiment. The main components of essential oil in separating containerⅠare terpenoid, terpeneless compound is in separating container Ⅱ. Through second-level separation the technological conditions of de-terpene are: pressure 7MPa, temperature 32℃ in separating containerⅠ;pressure 4～5MPa, temperature 32℃ in separating containerⅡ. The optimum technological parameters of obtaining two essential oils are: particle size 0.60mm, pressure 10MPa, temperature 36℃, operating time 90 minutes. There are 1.46% and 1.88% essential oil in separating containerⅠand Ⅱ respectively.

通过正交试验表明：分离器Ⅰ中精油的主要成分是萜烯烃类化合物，分离器Ⅱ中精油的主要成分是由高级醇类、醛类、酮类、酯类等组成的含氧化合物；二级分离脱萜的适宜参数是：分离器Ⅰ的压力为7MPa，分离器Ⅱ的压力与循环压力相同，温度都为32℃；同时得到萜烯烃类精油和低萜精油的最优工艺组合是粒度0.60mm，萃取压力10MPa，萃取温度36℃，萃取时间90min，精油得率分别为1.46％和1.88％。

The combined technique of GC/MS was used to analyze the out water. The results showed that the activated bacteria could can degrade the hard degradation organism, such as esters, aldehyde, alcohols, alkanets and so on.

通过GC/MS联用技术对焦化废水出水的水样分析，可以发现该活性细菌在培养条件下能部分降解酯类、醛类、醇类、烷烃类等难降解有机化合物。

The results showed that 1 There are 33 kinds of pyrolysates at 300℃. 42 kinds at 421℃, 50 kinds at 500℃, 49 kinds at 600℃ and 23 kinds at 800℃ 2 Under different conditions, the pyrolysates from the extraction of Honeysuckle are aldehycies. ketones, esters and furans. Most of the pyrolysates are the important components in cigarette smoke. It offers a possibility of the quality control on the extraction of Honeysuckle by using its fingerprint.

结果表明：①金银花提取物在这一系列裂解温度下检测到的挥发性热裂解产物分别为33种、41种、50种、49种、23种；②金银花提取物裂解后产生大量醛类、酮类、酯类和呋喃类物质，这些物质是构成卷烟香味的重要物质，能改善卷烟吸味、减轻刺激性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。