查询词典 spontaneous emission

The research result shows that the best fuel delivery advance angle of diesel engine used has been changed; with the first cylinder as the standard, the deviation of the fuel delivery advance angle between the first cylinder and other cylinder surpasses allowed range; the smoke emission and fuel consumption can be decreased and delivering fuel to each cylinder at the right time can be assured, through the selection and adaptation of fuel delivery advance angle .

研究结果表明：使用后柴油机的最佳供油提前角发生了变化；以第一缸为准，其它缸与第一缸之间的供油提前角偏差超出了允许的范围；实行供油提前角的调配可使各缸在正确的时刻供油，减少排放，降低油耗。

If the advance angle of injection is adjusted too earlier, knock phenomenon will been show in the combustion process. EGR is a good way to improve NOx emission. If EGR is big, the ignition delay period will become long.

EGR率是改善NOx排放的有效手段，EGR率大的工况，滞燃期长，达到着火条件前，SMD在零附近的油滴更多，则汽化表面积越多。

In order to reduce the maximum combustion pressure and the NO, emission, it adopts smaller advance angle of fuel delivery. In most conditions, the combustion starts after TDC; the maximum rate of pressure rise, the combustion pressure and the heat release rate are lower; their relevant phases are retarded.

结果表明，为降低最大燃烧压力及NO、排放，小缸径直喷增压柴油机采用的喷油提前角较小，柴油机在大部分工况下，燃烧始点较迟，最大压力升高率、最大燃烧压力较低，其对应相位较迟，放热规律也较低。

By properly using turbocharger,increasing the efficiency of air charge, improving the machining process for the liner and reducing the advance angle of fuel feeding etc, the particles and NOx of improved 4102BZQ diesel engine were reduced so that it can meet EuroⅠemission standard.The develoPMent of Model 4102BZQ improved diesel engine allows the 4-cylinder engine of DCD to meet the emission legislation forced by our country, and extends the life-time of DCD engines, which makes a contribution to the develoPMent of DCD economy and protection of environment.

通过合理匹配增压器，缸盖进气道，提高充气效率、改善缸套加工工艺、缩小供油提前角等措施来降低4102BZQ完善提高型柴油机的颗粒物和氮氧化物，使之达到欧Ⅰ排放标准。4102BZQ完善提高型柴油机的开发，使朝柴四缸机达到了国家强制性排放法规的要求，延长了朝阳柴油机的寿命，为发展朝柴经济和保护环境做出了贡献。

Deformation effects on particle emission in a fission process of ^251Es nucleus as functions of excitation energy, angular momentum, and viscosity coefficient have been investigated in detail within the framework of Smolu-chowski equation.

用处理推转壳模型的粒子数守恒方法，分析了稀土变土变形核^172，174Hf的基态带和低激发高K多准粒子带的运动学转动惯量J^(1)随角频率ω的变化及基微观机制，特别是被拆散核子的Pauli堵塞交的重要影响。

This thesis introduces the research history of sonoluminescence, the properties and equipments of single-bubble sonoluminescence and the factors affecting the amount of light emission. Based on the experimental realization of SBSL, the experiment in this thesis is to confirm the coherence between the emitting frequency and the driving cycle of SL. Under this feature ,we established the programme of the experiment that measure the angular correlations in SBSL , built the experimental devices and conducted initial measurements .Then we got the conclusion that there is a presence of non-spherical symmetry in the process of SBSL .

本文介绍了声致发光的发展历史，对单泡发光的特性和实现声致发光的设备进行了描述，对影响发光强度的要素做了概述；并在实现单泡声致发光的基础上通过实验验证了单泡声致发光的发光频率与驱动超声频率具有一致性的特点，根据这一特点确立了声致发光角分布测量的实验方案，建立了实验装置，并进行了初步测量，得到在声致发光的过程中存在着非球形对称状态的结论。

Data obtained by thin-sections analysis, cathodoluminescence emission analysis and SEM/EDX show that carbonate cements seem to be the uppermost cements composed of ferroan sparry calcite and ankerite and are distributed mostly in the depth interval of 100 m below the unconformity, with their contents increasing with the depth.

通过薄片观察、阴极发光、扫描电镜/能谱分析，认为碳酸盐胶结物是研究区砂岩最主要的胶结物成分，其主要类型为方解石和铁白云石，垂向上含量随深度增加而增加，多集中分布在白垩系和侏罗系之间的不整合面之下约100 m的范围之内。

The CDM is likely to become a key tool for businesses from Annexure 1 parties to meet their home-state GHG emission reduction targets, and to create a source of revenue from reducing GHG emissions.

清洁发展机制很可能成为附件一一方企业满足本国温室气体减排目标、根据温室气体减排量创造收入来源的重要工具。

Vomiting, but also to emission of harmful substances and, when used antiemetic drugs, will remain in the body of harmful substances, hazardous to health.

呕吐。呕吐也是为了排出对人体有害的物质，若此时采用药物止吐，会使有害物质滞留在人体内，危害健康。

Studied are the determining trace sulfur in iron, manganese ores and in cement by using spectroscopic method of inductancecoupling plasma emission, the selection of work conditions and the accuracy of results. As shown by tests, it is reliable to use aqua regia to resolve samples.

研究了利用电感耦合等离子体发射光谱法测定铁矿、锰矿、水泥等矿产品中微量硫的溶样方法、工作条件的选择和结果的准确性。

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。