点火

Preignition occurs when the fuel-air mixture ignites before the spark plug fires.

提前点火发生在燃油空气混合气在火花塞点火之前点火。

The ignition of this electric current in the regulation when the dot is released with onefold weaveform, and the primary coil that electric current has shed ignition coil, tall voltage electricity produces in the secondary coil induction of ignition coil, its are to be in as a result intense scintilla bursts forth in sparkplug clearance.

此电流在规定的点火正时点以单一的波形被释放，而电流流过点火线圈的初级线圈，在点火线圈的次级线圈感应产生高电压电流，其结果是在火花塞间隙中迸发强烈的火花。

When using a second-delay detonator which employs a safety fuse as the delay element,a small amount of ignition powder is usually smeared on the top of the delay element to increase the reliability of the first ignition.

1引言在利用导火索作为延期体的电秒延期雷管和导爆管秒延期雷管中，为了提高一次点火的可靠性，通常要在导火索延期体的点火一端，涂敷少量的点火补偿药。

When a droplet is suddenly injected into high temperature environment, the droplet self-ignition phenomenon occurs.

摘 要：燃料液滴突然进入高温空气环境后，会发生自点火现象，液滴进入与自点火发生之间的时间间隔称为液滴自点火延迟时间。

This model clearly divides the droplet self-ignition delay into two parts, the physical delay and the chemical delay.

利用此简化模型，详细分析了环境温度和液滴大小对自点火延迟的影响：环境温度越低，气体微团温度也越低，自点火延迟时间越长，物理延迟部分所占比重越大；液滴初始半径越小，自点火延迟时间越短，化学延迟部分所占比重越大。

Result of computation of content of the oxygen in ignition air current makes clear, the aerobic content in air current of microwave sirocco ignition is 21%, content of the oxygen in gas ignition air current is 8.59%.

点火气流中氧气含量计算结果表明，微波热风点火气流中的氧气含量为21%，煤气点火气流中氧气含量为8.59%。

To weld point of sirocco of iron ore microwave fire undertakes experimenting study and through computation different agglomeration ignites the content of the oxygen in air current analysed mechanism of microwave sirocco ignition.

梗概： 对铁矿石微波热风烧结点火进行试验探究并通过计算不同烧结点火气流中氧气的含量分析了微波热风点火机理。

In theoretically, the hot spot model of plasma ignition is studied, it can describe the ignition behaviors at a qualitative level and analyze all sots of effects.

理论上，研究了等离子体"过热点"点火理论模型，可以对等离子体点火过程进行定性地描述，分析点火过程中的各种效应。

The hot spot model of plasma ignition is studied , it can describe the ignition behaviors at a qualitative level and analyze all sots of effects .

理论上，研究了等离子体"过热点"点火理论模型，可以对等离子体点火过程进行定性地描述，分析点火过程中的各种效应。

Firstly, the theory and knowledge of sparking and burning are briefly introduced. The holistic project of this experiment is designed aiming to the experiment motive. And then the micro-process technique on silicon is chosen. According to the technique, the structure and size of the micro chamber, the spark device, the gas-fired channels are designed. The mask of lithography is produced based on the design. At last, the whole burning room is produced by the techniques of photolithography, deposition, dry etching, wet etching, lift off, etc.

本文首先介绍了点火燃烧的有关原理和基本知识，然后根据提出的实验研究目标，确定了微小空间内点火特性实验总体方案，之后结合拟采用的硅微加工工艺设计确定了微燃烧室、放电点火装置、燃气通道等各部件的结构尺寸，并最终得到光刻用掩膜版图形，最后分别采用光刻、淀积、干法刻蚀、湿法刻蚀、剥离等硅微加工技术完成了实验用微燃烧室的制作。

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。