查询词典 thermal efficiency

Pulse detonation engine is a new concept of propulsive engine which uses high temperature and pressure gas produced by intermittent or pulsant detonation wave to generate thrust. PDE has many desirable advantages, including high thermal dynamic cycle efficiency, low specific fuel consumption, high thrust/weight and specific impulse, simple configuration, and will become propulsive device of aviation and spaceflight aerocraft in 21st century.

脉冲爆震发动机是一种利用间歇式或脉冲式爆震波产生的高温、高压燃气来产生推力的新概念发动机，这种发动机具有循环热效率高、燃料消耗率低、推重比高、比冲大、结构简单等优点，将成为21世纪新型的航空航天飞行器的动力装置。

For the first time we synthesized nanoscale metal hydrides of lanthanum, neodymium, samarium, dysprosium, and ytterbium with high efficiency under mild condition by complexometric catalysis instead of traditional preparation at high temperature and high pressure. It is for the first time that we synthesized lanthanide organic compounds with catalysts or initiating agents at atmosphere and ambient temperature,and some of them are new compounds. Nanometric lanthanide metal powders are prepared by thermal decomposition of the compounds in vacuum. Differently from the traditional method, size of the products prepared by our method is less than 40nm, and the activity of the reaction is very high. They are pyrophoric at atmosphere. They can make some reactions without activity or low activity show extremely high activity .We investigated influent regulations of methods, conditions to scale and special surface.

我们首次成功地用络合催化等方法取代需在高温高压下进行的传统方法，在温和条件下高效率地合成出纳米尺寸镧、钕、钐、镝、镱的金属氢化物；首次在常压常温的条件下，通过催化、引发等方法合成镧系金属有机化合物，再将其真空热分解成功地制备了纳米尺寸的镧、钕、钐、镝、镱等金属粉末；与传统方法不同，这些方法得到的产品基本颗粒尺寸小于 40 nm，遇到空气燃烧，具有极高的化学反应活性，使原来活性很低甚至观察不到活性的反应大幅度提高反应速率和产率；考察了制备方法、制备条件等因素对晶粒尺寸、比表面积大小等的影响规律。

The fluorinated carbon film will be a potential material as the IC isolation medium, and it is becoming one of the rivalrous candidate medium dielectric constant materials to instead of the SiO2 for the higher density and higher speed IC in the future because of its lower dielectric constant and good thermal stability, the film will increase the speed and efficiency of IC.

含氟碳膜是一种很有应用前景的集成电路用介质材料，其低的介电常数和较好的热稳定性使它可以取代传统的SiO_2作为致密、高速集成电路的金属互连线间的绝缘隔离层，从而提高集成电路的速度和效率。

All products by AURA are thermodynamically optimized,and characterized by high efficiency and excellent heat transfer to the thermal oil.

所有的AURA产品设计计算都经过内部优化来保证高效率和完美的导热油传热。

For lightly doped unreduced crystals, the thermal fixing efficiency up to 50% has been achieved.

实验表明热固定效率和光栅的暗存储寿命不能同时提高，这与理论预期一致。

These results clearly justifies that in combustor, the injector location and its conditions have no effect on the flowfield structure but have strong effect on the combustion efficiency, and that inside the engine, undesirable injector conditions can result in the engine thermal choked and unstart.

第五章计算了含横向喷流的二维燃烧室和一种简化一体化超燃冲压发动机流场，发现在燃烧室中喷口位置及喷射条件对流场的结构影响不大，但对燃烧效率却有较大的影响；而在发动机内部，不适当的喷射条件，有可能引起发动机的&热壅塞&，使发动机无法启动。

Because from the principle of thermal cycle perspective, energy efficiency is too high, heating effects, dehumidifying effect is not necessarily good, but affect the user's use.

因为从热循环原理看，能效比太高，制热效果、除湿效果不一定好，反而影响用户的使用。

One prominent example is the high efficiency thermal polymer skin encasing the National Aquatics Center, that greatly decreases energy consumption at that Olympic venue.

奥运会展示的另外一个新型太阳能技术是太阳能混合发电/热能系统，它可以同时提供电力和热能。

The machine after the band is inserted in it can automatically finish band-gathering, thermal joining, cutting-off and new band starching and is equipped with an auto-stop drive, fast, high efficiency, time and labor saving and high quality of packager.

在插入包装后，机器能自动完成聚带，热合，切断，并出带的捆扎过程；且有自动停机之功能；其工作速度快，效率高，省时省力，捆扎质量高。

In this thesis, the characteristics of tabulating thermal properties of water steam are investigated and two kinds of tables are developed and applied for numerical calculation. The high efficiency and accuracy of these tables and corresponding interpolation program are attained.

本文还探索了水蒸汽性质制表的特点，制成了两类水蒸汽性质表格并应用于数值计算，该表格及相应的插值方法具有高精度和高效率的特点。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。