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Hydroquinone is one of the key ingredients in Obagi Nu Derm and is a very strong ingredient which can cause adverse affects if not used correctly. With the Obagi system you are unlikely to see these affects but you can never be sure. This is a negative for the Obagi Nu-Derm system and may put a lot of people off using the system.

对苯二酚是欧邦琦 Nu-Derm 系统关键成分之一，如果使用不当，也是导致副反应的主要因素，您未必能见到欧邦琦的这些副反应，但您永远不要确定，对欧邦琦来说这是消极的，可能会使一些人中途放弃。

For a long period of time, widely used in the production of components of an effective insecticide rotenone is mainly from the genus Derris root extract, collect rotenone from the root to dig down to two meters deep, the human cost of not only high-cost and easy caused by soil erosion, many of the genus Derris production has stopped growing, leading to the market with rotenone as the main active ingredient of the biological pesticide manufacturers shortage of raw material sources.

相当长一段时间，在生产上广泛使用的有效杀虫成分鱼藤酮主要是从鱼藤属植物中的根部提取，采集鱼藤酮的根要挖掘至地下达两米深，不仅人力成本耗费高，而且容易造成水土流失，不少鱼藤属植物的产区已经停止种植，导致市场上以鱼藤酮为主要活性成分的生物农药制造企业原料来源短缺。

But excessive glass ingredient can lead to increasing the dielectric loss and lowering the resistivity of the system.

然而，过量的玻璃将会引起瓷料系统损耗的增加，绝缘电阻的减小。

And HP's commitment to be the best customer service organization in China has been a key differentiator and ingredient to ongoing development of our relationships.

惠普决心成为中国最佳的客户服务机构，这是我们不断发展目前关系的关键。

Ingredient analysis, grain size analysis and scanning electron microscope observation show that the sands of Huangyangtan sandy land come from the diluvium on Huangyangtan platform and the alluvium of Yanghe river.

对黄羊滩沙地进行物质成分分析、粒度分析和扫描电镜观察，结果表明：黄羊滩沙地的物质具有二源性特征，分别来源于黄羊滩洪积台地洪积物和洋河冲积物。

Ginsenoside that is an active ingredient of ginseng can excite central nervous system. GSRb1 is diol form of ginsenoside.

人参是传统的益智中药，其有效活性成分人参皂甙(Ginsenoside，GS)对中枢神经系统具有良好的兴奋作用。

Many aromatic amine, such as aniline and N-methylaniline and diphenylamine, whose antidetonating quality are excellent, are not only often employed as concocting ingredient of antiknock but also suitable to research with electrochemical methods.

许多苯胺类化合物，如苯胺、N-甲基苯胺、二苯胺是性能良好的非金属抗爆制，也是抗爆剂常用的调合组分，且具有电子转移性质，适于电化学研究。

Efficacy: it can quickly and mildly remove makeup and dirt on the face, discompose and remove melanin, help prevent dull skin and realize whitening effect, and help skin absorb whitening ingredient; in the mean time, high-effective moisturizing formula components can supplement moisture quickly and make skin moistening and smooth.

功效：能迅速而温和的清除面部彩妆及污垢，分解并排出黑色素，帮助防止肤色暗沉，达到美白效果，并帮助肌肤吸收美白成分，同时高效保湿配方成分迅速补充水分，无紧绷现象。

PID control is an important ingredient of a distributed control system.

PID控制是分布控制系统的一种重要组成部分。

Traditional Chinese pharmacy has double complex in bioactive ingredient and functional mechanism and it is difficult to explain by the modern biomedicine theory. So it is seriously restrict the modernization of Traditional Chinese Pharmacy.

中药由于所含有效成分及作用机制的双复杂性，难以用现行生物医学理论解释，严重地制约了中药的现代化。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。