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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
The refined industrial olefins as raw material could meet with the requirements of continuous alkylation.
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The grain in the workpiece is refined obviously after multi-pass pressing.
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The terminal functional of a general control system is refined by studying an analogous problem for a variational system and regularization.
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Certain hypotheses concerning optimal control are refined and the relationship between the Pontryagin maximum principle and Bellman's dynamic programming method in the context of these hypotheses is discussed.
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Malyugin on linearization of arithmetical models of logical functions are interpreted and refined from the viewpoint of modern techniques of logical design of integral circuits and nearest neighbor technologies.
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| | In this paper we research mainly on the technological condition of pretreatment of lysine broth, extraction of lysine with ion exchange resin, elution and decolourisation. The cane molasses broth is acidified with sulphuric acid or hydrochloric acid. Centrifugalisation and the clarifying liquor passes through the column of ion exchanger at pH1.5-2.0; the ion exchange adsorptive power is 80-85g/l. resin and the yield of elution is above 95%. Decolourised with active carbon, the refined L-lysine is 98.5... | | 本文主要研究赖氨酸发酵液的预处理,离子交换树脂提取,洗脱和脱色方面的工艺条件。甘蔗糖蜜发酵液经硫酸或盐酸酸化,离心沉降,澄清液在PH1.5—2.0上离子交换树脂柱,732NH_4~+型树脂离子交换吸附量为80—85克/升树脂,洗脱回收率在95%以上。用活性炭脱色,所得精制品纯度达98.5%,符合食品级标准。最后提出以732树脂提取,用氢氧化铵溶液洗脱为中心的赖氨酸提取过程的模式。 | | 文摘来源 | | 14 essential oils from Lauraceae in Yinbin area of Sichuan province were determined with GC-MS and retention index of GC for qualitative analysis and microcomputer at on-line real-time sampling for relative content of the components. Results showed that safrole is the major component of different essential oils from roots of several species of Cinnamo-mum. But different biochemical types were found respectively in different leaf and branch oils from the same species. For example, linalool 66%, 1,8-cineole 6... | | 为开发四川省宜宾地区樟科植物精油资源,采用GC—MS与气相色谱保留指数定性,微机在线实时采样测定各成分相对含量。结果表明樟属的几种植物其根部精油都主含黄樟油素。樟属同种植物枝叶精油却有不同生化类型;鉴定确认樟树种中有芳樟叶油主含芳樟醇(66%),樟叶油主含1,8-桉叶油素(61%),臭樟叶油主含β—橙花叔醇(26%);黄樟种中有大叶芳樟叶油主含d-芳樟醇(90%),大叶脑樟叶油主含d-樟脑(65%)。而樟属肉桂叶油主含反—肉桂醛(90%),银木叶油主含樟脑(37%)、顺—甲基异丁香酚(21%)。木姜子属山苍子油主含橙花醛(28%)和香叶醛(42%)等等。这些资源精油化学成分,特别是具有强抗菌活性成分的鉴定,为香料工业提供优质单离香料之原料有着现实应用价值。 | | 文摘来源 | | The purpose of this item is to study the technique on Prevention of refined cottonseed oil from souring. Finding the laws of changes in different conditions of storage. The emphasis is studied the efficiency of technique to add the antioxidants and storage with N_2 for keeping the quality of the edible oils and for lengthening the period of the secure storage, on this base approaching the antioxidative theory of oils and applying it to practice. The results of study are shown that the refined co... | | 本项研究的目的是研究防止精炼棉籽油酸败的技术,找出在不同储藏条件下的变化规律。着重研究了添加抗氧化剂和充氮气等技术对保持食用油的品质、延长食用油的安全储藏期的效能,并在此基础上探讨了油脂抗氧化的理论和在实践上的应用。研究结果表明:精炼棉籽油是一种很容易酸败的食用植物油。添加抗氧化剂和充氮气等措施都有一定的防止酸败的作用,尤以添加抗氧化剂BHT和充氮气的综合措施,有很显著的效果。 | | 文摘来源 | |   | | << 更多相关文摘 |
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