1) atmospheric microconstituents
大气微量成分
1.
A brief overview is made of environmental effects, spectroscopic characteristics and detections status of atmospheric microconstituents.
本文概述了大气微量成分的环境效应,光谱特性和探测概况,着重概述了大气探测的新技术和发展趋势。
2) MECOTA,minimum effeminor constituent of the atmosphere
大气的次要成分;大气的微量组分
3) trace components
微量成分
1.
Effects of different adsorbent on pigment and trace components in oil bleaching;
油脂脱色过程中吸附剂对色素及微量成分的影响
2.
Up to now,more than 100 trace components of Chinese rice wine were detected by GC,GC-MS and HPLC,including alcohols,aldehydes,organic acids,esters,phenolics and nitrogen-containing compounds and so on.
从微量成分的种类上看,中国黄酒中目前已经检测到的微量成分达100种以上,包括醇类、醛类、酸类、酯类、酚类、含氮化合物,以及其它化合物。
3.
The relative retention time tR′ for main trace components including alcohols and esters in liquor were determined by PEG20M capillary column and the relations between tR′and molecular topological index 0T,1T had been studied.
采用PEG20M交联毛细管柱测定了白酒中主要微量成分醇、酯类物质的气相色谱相对保留时间(tR'),并对其tR'与其分子拓扑指数0T,1T间的关系进行了研究。
4) microconstituents
微量成分
1.
The content characteristics and change rules of microconstituents content of the newly-produced Feng-type liquor in different technical period before and after pit entry were revealed and liquor body styles in different special technical periods were studied through liquor tasting and index analysis.
对西凤酒圆窖前后各工艺期(立窖、破窖、顶窖、插窖、挑窖)所产新酒从微量成分的含量方面进行了特征分析及口感评定,找出了各特殊期所产白酒的微量成分含量特点、消长规律及酒体风格上的个性特点。
2.
Up to now, 322 kinds of flavoring components had been found in liquor microconstituents (about 2% of the total amount).
中国白酒是蒸馏酒中独具特色的产品,因其工艺独特,微量成分约占2%,已发现的香气成分总数为322种,特点是酸高、酯高、醛酮高及高级醇低。
3.
In spite of its comparatively smaller proportion, microconstituents exert unique effects in liquor that could not be replaced by other chromatographic components and their existence is not only absolutely necessary but also a determinative factor to liquor style and liquor quality.
白酒中的微量成分在酒中所占比例较少 ,但其在酒中的作用是其他色谱骨架成分不可取代的 ,对酒的质量起到重要作用 ,是中国白酒必不可少的成分 ,对酒的风格产生决定性作
5) trace component
微量成分
1.
The quantitative analysis of the main trace components with the aid of identification by GC/MS in Fenjiu flavor Liquor samples,were performed.
利用气相色谱 (GC)及色 /质联用 (GC/ MS)技术 ,对贮存期不同的清香型白酒主要微量成分进行了定性、定量分析 ,统计分析发现 ,影响此香型白酒风味的三十几种主要组分的含量在陈酿过程中随贮存时间的变化与其自身的沸点、在水中的溶解度以及汽化热有一定的关系 ,如汾酒中低沸点、低汽化热、水溶性差的乙酸乙酯含量年均变化率达 - 1。
2.
The causes of producing the compflex trace components in Luzhou-flovour liquors clude the flavuors from different materials,produced by the different micrograms in Daqa,in the distillation and produced by the bacteria in the pit mud,etc.
浓香型白酒微量成分复杂的原因包括不同原料带入的香气成分、大曲中不同微生物产生的芳香成分、糟醅蒸馏过程中产生的香气成分及窖泥微生物产生的香气成分等。
3.
By analysis of the main trace components,such as acids,alcohols,esters,aldehydes,heterocyclic compounds and volatile sulfhydryl compounds,it is suggested that flavor characteristics of Yanghe Daqu are different from those of Wuliangye Daqu since both of them are strong aromatic Daq.
对中国浓香型白酒的两个流派———川派和江淮派的代表酒五粮液和洋河大曲的微量成分作了分析比较 ,通过酸、醇、酯、羰基化合物、杂环化合物和挥发性含硫化合物的对比研究后认为 ,川派与江淮派虽属同一香型 ,但其在口感和微量成分上存在比较明显的差异 ,并对差异的产生原因作了简要分
6) atmospheric composition
大气成分
1.
Atmospheric composition detector with a quadruple mass spectrometer on board spacecraft "SZ-4" Launched on 30 December 2002.
“SZ-4”大气成分探测器搭载在神舟4号留轨舱上于2002年12月30日发射入轨,在在轨运行的头3个多月中,正值地球南半球处于夏半球季节,并发生了多次中低强度的地磁扰动事件,“SZ-4”大气成分探测器测得了轨道舱运行高度上(330~362公里附近)大气成分的响应变化和异常现象新结果。
2.
A comprehensive introduction is made to the design and features of the atmospheric composition information platform for Dalian.
介绍了大连地区大气成分信息平台系统的设计思路及其功能特点。
3.
During daily inspection of atmospheric composition station,instruments status should be watched closely and recoded in detail.
在大气成分站日常的巡视过程中应详细观察并记录仪器的各项状态。
补充资料:大气微量气体
| 大气微量气体 atmospheric tracegases 大气中含量很微小的气体组分,即除氮、氧和惰性气体以外的其他气体组分。它们的浓度大多低于100微克/米3。 对流层大气中 ,氧和氮是主要的气体组分 ,惰性气体氩-40、氖、氦-4、氪和氙也有相当的含量 ,这是大气长期演化过程的结果,它们在大气中存在的时间很长,可以认为在相当长的时间内它们的含量是不变的。而大气微量气体如氮氧化物、碳氧化物、氯化物和硫化物等,都参与了周期相当短的化学循环,它们的滞留期从几十年到几天,甚至时间更短。已发现的大气微量气体有20多种,其中浓度最小的是氡,它在空气中的混合比(按体积计算)为 6×10-20。 随着分析技术的发展,预期还会发现更多的微量气体。 大气是一个动态体系,微量气体通过与海洋、土壤和生物体系进行交换,构成了包括物理过程和化学过程在内的气体循环。 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条