查询词典 spontaneous emission

Objective To investigate the optimal time of distortion product otoacoustic emissions in newborn hearing screening and to obtain the basic properties of DPOAE in the normal newborns. Methods DPOAE were recorded 1 to 5 days postpartum in 40 ears of 20 healthy newborns with Celesta 503 Cochlear Emission Analyzer.

目的 研究新生儿畸变产物耳声发射听力筛选的最佳时机，了解正常新生儿DPOAE的基本特征；方法应用Celesta 503型耳声发射分析仪对20名正常新生儿出生后1～5天逐日进行DPOAE测试。

Methods DPOAE were recorded in 112 ears of healthy newborns with CELESTA 503 Cochlear Emission Analyzer. Results The prevalence of DPOAE was 91.3%.When the fo was from 750 to 4 000 Hz,the incidence of detectability was highest and amplitude was stable.

采用耳声发射分析仪Celesta 503对正常新生儿112耳及正常听力成人126耳进行DPOAE听力图测试，Medisoft96统计学分析。

Within the industry, the adjective most often used to describe Mr Ghosn's plan to make the Renault-Nissan Alliance the first big manufacturer of zero-emission vehicles is "bold"—in other words, somewhere between very risky and certifiably mad.

Ghosn先生打算让雷诺-日产联盟的成为零排放车辆的第一大制造商的计划，"胆大妄为"成为在业界内最常用来形容该计划的形容词——换句话说，他的计划非常危险，或者说非常疯狂。

In the experiment we find the ITO thin film with cesium activation show a photoelectric emission effect.

通过实验我们发现被铯激活后的ITO薄膜具有光电发射效应。

Bio-fuel has the advantages of less emission, higher cetane number, and no carcinogens produced.

生物柴油具有排烟少、十六烷值高，且不会产生致癌物质等优点。

The plans of the industrial chains for Zhenhai chemical park which represents the mode of individual entity symbiosis in China and for ZJC group company which represents the mode of comprehensive entity symbiosis in China have been studied in this dissertation.The whole industrial chain and branch chains of circular economy have been planned for Zhenhai chemical park. The branch chains consist of ethane chain, C_1 chain, HC1 chain, H_2chain, NH3 chain and S chain. The concept of equivalent pollutant emission, E?

本文对镇海化学工业区的工业链构建进行了可行性分析；完成了园区工业链的整体规划设计，和包括乙烯工业链、碳一工业链、HCl工业链、H_2工业链、NH_3工业链、S元素工业链在内的6条分链的设计；提出了污染排放当量E_t′的概念，并将其应用到园区工业链招商的初评，制定了入园参考线；本文在对ZJC集团公司发展现状分析的基础上，根据其物质流和能量流的分析，进行了工业链的总体设计，并对氟化工产业、基础化工产业(包括以合成氨为代表的煤化工、以氯碱生产为代表的盐化工以及硫酸、电石等产业)和石油精细化工产业完成了分链设计，进行了分链的分析，提出了建议。

NO emission was found to be greatly affected by the temperature of burning char particles.

NO的释放被发现与焦粒的温度有很大关系。

The flow characteristic of intake manifold has sensitively influence on engine, including economy performance, dynamical performance and the level of injurant emission.

其流动特性对发动机性能的影响十分敏感，其优劣影响到汽车的经济性、动力性和有害物排放的水平。

As to our knowledge, this is the first time to investigate systematically the defects of ZnO. The density of states and the charge density shown in this paper facilitates the analysis of experimental results such as Photoemission and absorption spectra or emission spectra.

本文首次对ZnO的本征缺陷做了系统的研究，计算了每种缺陷的态密度曲线和它对电荷密度分布的影响，这些结果对能谱和光谱等实验结果的分析会有很好的借鉴意义。

This chelate structure is identified by the atom-emission spectrum analysis.

通过原子发射光谱分析证实了此螯和物的存在。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。