Natural active ingredient, free of DEET and synthetic pesticides.
天然活性成分，不含驱蚊胺及合成农药。
This article mainly discusses the summary, necessity and method of SAR study of natural active constituents.
本文主要探讨进行天然活性成分的构效关系研究的概况、必要性和方法。
The invention is to make use of the endogenetic fungi resource of plant to acquire natural active ingredients.
目的是利用植物内生真菌资源，获得天然活性成分。
Cell engineering and genetic engineering technology will open up a new route to artificial synthesis of natural active substances.
细胞工程和遗传工程技术将为人工合成天然活性物质开辟新的途径。
The author reviews applied results of 13 kinds of natural active materials for cement developed and utilized in our country, and takes some applied examples.
对我国已经开发利用的13种天然活性水泥混合材的应用效果作了比较全面的评述，并列举了应用实例。
Tea-polyphenol is a kind of natural active substance extracted from tea, more and more attentions have paid to gradually for its extensive physiological function.
茶多酚是从茶叶中提取天然活性物质，因具有广泛生理功能而逐渐受到人们关注。
Abstract: the use of biological transformation of structural modification of natural drugs is one of the effective ways for screening new natural active compounds.
摘要：利用生物转化对天然药物进行结构修饰，是筛选新的天然活性化合物的有效途径之一。
Plant extracts (PE) are phytogenic products consisting of one or more types of natural active ingredients, which come from physical or chemical extraction of natural plants.
植物提取物是以植物为原料，经过一系列物理、化学提取过程，得到的由一种或多种天然活性成分构成的植物产品。
We introduced the breaking cell wall technology and the integration technology to the supercritical CO2 extraction efficiency and the cost influence for natural active products.
萃取中的破壁技术及集成技术对天然活性物的超临界CO2萃取效率和生产成本有一定影响。
Method By the international literature, the structure-activity relationships of prolyl oligopeptidase inhibitors, natural active constituents, and clinical studies were summed up.
方法根据国外相关文献，对脯氨酰寡肽酶抑制剂的构效关系、天然活性成分以及临床试验情况进行整理和归纳。
Objective to review advances of the study on prolyl oligopeptidase inhibitors, including evaluation of their structure-activity relationships, natural active constituents, and their clinical studies.
目的综述脯氨酰寡肽酶抑制剂的构效关系、天然活性成分以及临床研究等方面的进展。
Active monitoring and surveillance of the natural mosquito population should accompany control efforts to determine programme effectiveness.
积极监测蚊子自然数量应是控制工作的一部分，以了解活动的有效性。
The point of all this is that, although it is known which enzymes are active in a natural Golgi apparatus, the details of how the modifications happen are obscure.
这前面所有一切的关键是，尽管人们知道酶在天然高尔基体中起一定的作用，但具体怎样发生作用却仍是未知的。
Natural Exercise. Creating a more active lifestyle can help when getting to the gym is impossible.
自然锻炼的方式：如果去健身馆不太可能的话，建立一个积极的生活方式会有很大的帮助。
And do remember that missing your kids and your active participation in their daily lives is a natural stage in your own life.
一定记住，不参与孩子的日常生活和孩子不在身边是生命中的一个自然阶段。
It has seized on natural disasters, such as earthquakes, to play an active civil-defence role.
他们对自然灾害给予了密切关注，比如地震，他们进行了非常积极的民事防御工作。
The chances of a disruption from space are getting stronger because the sun is entering the most active period of its 11 to 12-year natural cycle.
由于太阳正逐渐进入活跃时期，太阳黑子的活动周期为11年到12年。
As the brain enters deeper states, our consciousness is less concerned with the physical state, our 'third eye' is active, and separation becomes natural.
如同脑进入更深的状态中，我们的意识与物质状态关系更少，我们的第三只眼睛'活跃起来，而且分离变成天然。
High egg quality fish meal, Antarctic shrimp meal, active yeast, spirulina, natural phospholipids, a variety of high-quality minerals and vitamins.
高蛋质鱼粉、南极虾粉、活性酵母菌、螺旋藻、天然磷脂，多种优质矿物质及维生素等。
Natural whitening factor and active elements from lotus flower and other plants effectively inhibit the production of melanin and repair damages due to ultraviolet to restore clear, healthy skin.
天然冰肌素美白因子与水莲花等多种植物萃取精华活性成分，有效地抑制黑色素沉着，修复紫外线引起的损伤，令肌肤如冰雪般的纯净。
After repeated screening and the experiment, from 329 kinds of natural medicines found in one of Valeriana active substances, with high-performance block and kill the AIDS virus.
经反复筛选和实验，从329种天然药物中发现缬草中的一种活性物质，具有高效阻断并杀灭艾滋病病毒作用。
As biphenyl compounds are presented in a large number of biologically active natural products, synthesis of biphenyl compounds has attracted more and more attention.
联苯类化合物广泛存在于许多具有生理活性的天然产物中，它们的合成受到人们越来越多的关注。
Electron transfer reaction, one of the forward questions in chemical researches a very active domain in natural science in recent years.
电子转移反应是近年来自然科学中十分活跃的研究领域，是化学研究的前沿课题之一。
Lutein is an active carotenoid and potent natural source antioxidant. It is extracted from marigold flowers and contains a normal blend of carotenoids including: zeaxanthin and cryptoxanthin.
叶黄素是一种活性类胡萝卜素，它是天然的抗氧化剂重要来源，取自万寿菊花，它含有一种纯混合类胡萝卜素：玉米黄质和隐黄质。
Flavonoids is a kind of main active components in natural medicinal plants with many physiological functions.
黄酮类化合物是天然药用植物的主要活性成分之一，具有多种生理功能。
It should be emphasized in energy utilization that passive system may have priority over active system because the former makes natural ventilation and lighting be fully used.
在能源利用上强调被动式系统优先于主动系统，因为被动式系统充分利用了自然通风与自然采光。
The progress in improving the output of active natural products by metabolic engineering is summarized, and the application prospects of plant metabolic engineering are discussed.
本文分析了目前应用植物代谢工程在提高活性天然产物产量方面的研究成果，讨论了植物代谢工程的应用前景。
The progress in improving the output of active natural products by metabolic engineering is summarized, and the application prospects of plant metabolic engineering are discussed.
本文分析了目前应用植物代谢工程在提高活性天然产物产量方面的研究成果，讨论了植物代谢工程的应用前景。
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