预燃

The internal combustion engine specially designed for coking tail gas adopts advanced and reliable technology, such as electric control carburator technology, pre-combustion chamber technology, digital ignition technology, turbo-charging technology, etc.

焦炉煤气发电机组采用电控混合器、预燃室、数字点火、增压等项技术，具有操作简单，维修方便，使用寿命长等特点；焦炉煤气发电站建站周期短，投资少，见效快，经济效益可观，具有广阔的推广应用前景。

Concretely speaking, time parameter contains Preburn time, Set, and Data acquisition time. Atomization parameter consists of Power control and Vacuum control.

时间设定包括预燃时间、数据采集时间点的设定和积分时间；原子化参数包括功率控制和真空控制。

And it is also found that side ejection can enhance the performance of water mist fire protection systems. For spray fire suppression it is found that longer preburn time shortens extinguishing time.

此外研究结果还显示，采用侧喷方式时，系统的灭火性能将大大提高，而较长的预燃时间则有利于细水雾扑灭油雾火。

In these tests the local application water mist fire suppression systems were used, and the parameters such as ventilation conditions, preburn time, orientation of spray ejection and heat release rate of fires were changed to examine their influence on the effectiveness of water mist fire suppression.

实验中采用的是局部保护细水雾灭火系统，通过改变通风条件、预燃时间、喷雾方式及火焰功率等因素，考察了它们对系统灭火有效性的影响。

Liquid propellant rocket engine ; Precombustion chamber ; Turbulence model ; Three dimensional flow ; Numerical simulation

液体推进剂火箭发动机；预燃室；湍流模型；三维流；数值仿真

A dedicated carburetor throat and tiny intake valves fed small precombustion chambers a rich air/fuel mixture that was easy to ignite.

一个专门的化油器喉咙和微小的摄入量小阀美联储预燃室丰富的空气/燃料混合物很容易点燃。

The study showed that installing a precombustion chamber could help improve complete combustion of the burner.The terfiary air near the chamber wall could lower the temperature of the chamber inner wall.The study results provided the theoretical basis for optimum design of burner structure.

研究认为燃烧器设置预燃室有利于提高燃烧器的完全燃烧度，紧靠燃烧室壁面的三次风有利于降低燃烧室内壁温度，研究结果为燃烧器结构的优化设计提供了理论依据。

With the development of combustion research and the temperature measurement as well as relevant techniques, the flame temperature measuring techniques begin to enter the common industry fields from labs, and extend to the aviation and aerospace industry. At the beginning of the 1980s, the Ijumdien Institute in Holland began to develop many industry flame temperature measurement installations based on thermal couples. And later, the National Aerospace Administration also successfully employed the Coherence Anti-stokes Raman Stokes in the flame temperature diagnostic of the precombustion chamber of space shuttle main engine (SSME, liquid H〓/O〓 propellant).

随着燃烧研究的深入和温度测量及其相关技术的不断发展，从1980年，火焰温度测量技术开始由实验室走向工业现场、从一般工业现场走向航空航天领域：欧洲以荷兰的Ijmuiden研究所为代表，研究开发了很多基于热电偶的工业燃烧火焰温度测量装置；美国国家航天局则成功地将相干拉曼斯托克斯方法用于航天飞机的主发动机（SSME，液氢液氧发动机）预燃室燃烧火焰温度诊断上。

Dramatic reduction in engine deposits and cleaner spark plugs giving longer engine life, better power, improved spark plug performance and less chance of engine pre-ignition.

大幅降低存款和清洁的发动机火花塞给予延长发动机寿命，更好的能力，改进火花塞的性能，降低发动机的预燃式的机会。

Based on the prediction model for uncatalytic double base propellant burning rate the dissertation, carrys on the mathematical treatment to the hypothesis of polyemerization and disintegration, deduces the formula of catalytic double base propellant burning rate and pressure exponent; The results of experimental tests show that it can re-present quantitatively various stage of plateau combustion: super rate, plateau and mesa. The calculated results conform with the experimental results very well.

在非催化双基推进剂燃速预估理论的基础上，对聚合裂解的假设进行数学处理，导出催化双基推进剂的燃速公式和燃速压力指数公式；实验验证结果表明，模型中的公式可以定量地再现双基平台推进剂燃烧中的超速，平台和麦撒现象，而且计算值和实测值符合得较好。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。