以下为句子列表：
英文: 1 This system is used for the chemical laboratory and its functions to remove harmful vapors from the exhausted air by means of water or specified reagent dilution.
中文: 化学实验室排气系统需要有空气净化塔，通过水和特殊试剂对排气中有害气体进行洗涤。
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英文: Abstract: The automation of coal flotation has been wandering for many years in China.The production efficiency is relatively low because of the feed forward control which adds the flotation reagent based on the fine coal in feed slurry,ignoring the quant
中文: 文摘:浮选自动化在我国多年来徘徊不前，一直采用根据入浮煤浆中的干煤泥量来确定加药量的前馈控制方法，而不直接以产品的数质量指标作为控制目标，导致浮选生产效率较低.针对上述问题，研究了浮选工艺参数的检测方法，开发了浮选浆位仪和煤浆测灰仪，设计了浮选计算机控制系统，它根据煤浆测灰仪旁线检测的精煤灰分，运用模糊控制技术，通过调整浮选药剂添加量和浮选机浆位，来实现浮选过程的反馈控制.工业性试验表明，煤浆测灰仪的性能指标接近国外先进水平.煤泥浮选测控系统在淮北选煤厂的现场使用，使浮选生产在精煤灰分合格的前提下，得到了
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英文: According to the change fatty acid contest in the aging process of milled rice, and its relevance with PH value of milled rice, a new reagent to examine the freshness of milled rice wan developed.
中文: 摘要依据大米陈化过程中脂肪酸含量的变化及其与大米pH值之间的对应关系，研制出一种新的大米新鲜度快速检测试剂。
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英文: Adding this reagent to seven kinds milled rice with different fatty acid values, it is hind that the extinct in fresh rice became green and the extinct in aged rice became yellow.
中文: 将试剂加入7种不同脂肪酸值的大米样品中，新鲜大米浸出液为绿色，陈化大米浸出液为黄色。
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英文: Carboxyanilineazo salt and 2-hydroxyanilineazo salt were synthesized, and new azo reagent 4-(2-carboxyanilineazo)-pyrogallol and 4-(2-hydroxyanilineazo)-pyrogallol were synthesized through coupled reaction of 2-carboxyanilineazo salt and 2-hydroxyanilinea
中文: 摘要合成了2-羟基苯胺重氮盐和2-羟基苯胺重氮盐，它们与连苯三酚偶联，得到新的偶氮试剂4-(2-羟基苯偶氮)-连苯三酚和4-(2-羟基苯偶氮)-连苯三酚。
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