点火

In this paper, based on the specific CNG engine parameters and characteristics, the influence of the injection timing, ignition energy and lean combustion for the engine is tested, in order to explore the control rules of fuel injection, ignition energy and lean combustion and then draw the following conclusions: small injection advance angle of electronic controlled injection CNG engine is optimum

文章根据天然气发动机的具体参数和特性，探索电控喷射CNG发动机在燃料喷射、点火能量和稀燃等方面的控制规律，确定最优的控制参数，开展了喷射定时、点火能量及稀薄燃料等参数对发动机性能影响的试验研究工作，并根据试验结果分析，得出了以下结论：电控喷射WT615CNG发动机燃料喷射提前角要小些为宜

The apparatus adopts the technique of one-chip computer,can set ignition advance angle at random rev of the engine at any time and assists the power test of the engine.The apparatus can survey and describe the best ignition advance angle curve of motorcycle engine and affords gist for the design of motorcycle engine and ignition control.

该仪器采用单片机技术，能够在任意发动机转速下设定任意点火提前角，配合发动机测功试验，可以快速测绘出摩托车发动机最佳点火提前角曲线，为发动机和点火器设计提供依据。

Cylinder pressure data at different oil temperatures (20℃、30℃、40℃) and corresponding different spark angles (0oBTDC、6oBTDC、12oBTDC ) were sampled in experiments of BN491DQ engine. Emissions at start were measured. Ignition advance angle, combustion cycle variation, intake system difference affect cold start. The deeply research has got some important conclusions.

实验采集了BN491DQ发动机在不同机油温度（20℃、30℃、40℃）对应不同点火提前角（0oBTDC、6oBTDC、12oBTDC）的气缸压力数据，对冷起动的排放，点火提前角、燃烧循环变动、进气系统差异对冷起动的影响进行了深入研究。

Design of the motor igniter system is paramount to obtain rapid ignition of the grain.

设计汽车点火系统是至高无上的，以取得快速点火的粮食。

Two ignition methods of kerosene/oxygen igniter, direct ignition and indirect ignition, were discussed.

提出了两种应用气动谐振的气氧煤油点火器方案：直接点火方案和间接点火方案。

Laser multi point ignition can be adopted to replace the traditional base primer ignition .

将激光多点点火技术引入火炮的装药结构中，可以取代传统的底部底火点火方式。

In order to improve engine performance and power improvement, and improve the combustion engine emissions, so the development of the ignition point of the variable digital electronic ignition system.

为了提高引擎的效能与动力的提升、和改善引擎燃烧所排放的废气，所以开发出可变式点火角度的数位式电子点火系统。

In the process of transmitting and coupling of laser energy, there are some factors which caused energy lose. By doing experiment, these factors can be analyzed. Besides, since the instantaneity and complexity of the process, now it is difficult to completely understand the characteristics of laser ignition of energetic materials.

在激光点火系统中，激光能量的传输和耦合效果对激光点火非常重要，可用实验的方法测量能量传输过程中的能量损耗。

The high-power system including main circuit, the charging and discharging circuit of synthetic circuit test system, and the principle of charging and discharging for current supply using electrolytic capacitor is presented. At the aspect of circuit breaker control, the advanced permanent magnetic actuator is used and analyzed in this paper, including the precision computation and using in synthetic circuit. The trigger circuit of voltage supply is designed, and the intelligent control is used to trigger the igniting gap. And the integraph based Rogowski coil is designed and employed the intelligent detection of breaking current.

强电系统介绍了合成回路试验系统的主电路及其充放电电路，讲述了电流源采用电解电容器的充放电原理；断路器控制方面，采用当前比较先进的永磁操动机构，并对永磁机构的原理、精度计算和在合成回路中的应用做了详细地分析；设计并制作了电压源点火回路，对球隙点火进行智能控制；在智能检测开断电流方面，设计并制作了与Rogowski线圈相配合的积分器。

The ignition time of explosive decreases and ignition location removes from the interior to the edge of explosive cylinder with increasing of the heating rate.

升温速率增大，炸药点火时间缩短，点火位置从炸药内部移向炸药边缘。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。