第二章主要研究酉系统的膨胀性质。
In chapter 2 we study the dilation property of a unitary system.
乙醯胆碱酉每抑制剂可强化乙醯胆碱系统，报告指出它可能对瞻妄的治疗有益。
Cholinesterase inhibitors enhance the cholinergic system and there have been reports that they might be beneficial in treating delirium.
在系统化酉空时星座设计方法的基础上，提出了一种抗信道快变的酉空时星座设计方案。
A new method of unitary space-time constellation, which can improve the influence on block error rate by fast fading, is designed based on a systematic method.
结合水质分析及污染生物指数，采用污化系统法对酉安护城河河水在冬夏两季进行了监测研究。
Water body quality of Xi'an city circumvallated river was monitored and evaluated in summer and winter by saprobien system and biotic indexes of pollution, combined with water quality analysis.
结合水质分析及污染生物指数，采用污化系统法对酉安护城河河水在冬夏两季进行了监测研究。
Water body quality of Xi'an city circumvallated river was monitored and evaluated in summer and winter by saprobien system and biotic indexes of pollution, combined with water quality analysis.
应用推荐