以下为句子列表：
英文: At the room temperature, fluorescence intensities of these chemosensors in acetonitrile without transition metal ions were found to be very weak, due to the process of the efficient intramolecular photoinduced electron transfer (PET).
中文: 在室温下对其光物理性质的研究中发现，在没有加入过渡金属离子时，由于体系内存在有效的光诱导电子转移过程使得荧光团的荧光被淬灭。
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英文: Common type: nitrile butadiene oil resistant rubber. Fluoroelastomer and silicon rubber are used in applicable situation of high and low temperature. Use relevant lubricant.
中文: 普通型：丁晴耐油橡胶。高温，低温的应用场合，使用氟橡胶和硅橡胶。使用相应的润滑剂。
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英文: Diagnostic criteria and principles of management of occupational acute acrylonitrile poisoning.
中文: 职业性急性丙烯腈中毒诊断标准及处理原则.
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英文: Diazaspiro [4.4] nonane was synthesized from malononitrile as the starting material by a series of nucleleophilic displacement, hydrolytic cyclization and carbonyl reduction.
中文: 摘要以丙二腈爲原料，经过亲核取代、水解环合、羰基还原系列反应，合成了2，7-二氮螺[4.4]壬烷。
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英文: Hydroxynitrile lyases are the versatile group of enzymes, which play a significant defensive role in plant system against microbial attack.
中文: 摘要醇腈酶是用途较广的一类酶，在植物体内抵御微生物侵袭方面起着重要作用。
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