发生火花的

This spark must occur near the end of the compression stroke,as the piston approaches top dead center.

这火花必须发生在压缩冲程附近的末端，因为活塞接近中心。

A parallel shift of calibrationcurves due to difference in micro-structure was observed in an arc source but notin a spark source.

用电弧作光源时，观察到组织结构的不同使定标曲线发生平移，用火花光源时这种现象并不显著。

Short-circuit,overload,resistance of line or cable's connection overlarge,which cause line overheat,making sparkle and electric arc.

文摘：介绍了配电线路在运行中发生短路、过负荷以及导线或电缆接头处接触电阻过大而引起导线过热、产生火花和电弧引起火灾事故的原因。

In ultraviolet and spark discharging, dichloromethane, trichloromethane, tetrachloromethane and 1, 2-dichloroethane can react with nitrogen dioxide and nitrogen oxide respectively rapidly.

由此得到氯代烷与NO〓在火花放电、紫外光照射条件下，将发生快速化学反应。这对了解臭氧层中卤代烷烃和氮氧化物之间的化学反应有一定的参考意义。

It glimmered briefly in the days following the attack but disappeared just as quickly when agendas took root.

关爱。911发生后的那几天，世界确实闪现出关爱的火花，但很快就被尘嚣琐事埋没了。

To prevent this, install spark arrestors on all chimneys, stovepipes and vents for fuel-burning heaters.

为了防止这样的事发生，在烟囱、火炉的烟囱及燃油暖炉的通风口安装火花阻断器。

According to the requirement of oil drilling foreign and domestic, the international standard for oil equipment and national oil drilling codes. In order to prevent fault which flaming gas or vapour may be present in the air in sufficient quantities to be explosive or ignitable. We designed and made explosion-proof electric controlling equipment for oil field.

根据目前国内外石油钻井装备的要求，以及符合现代化钻井生产的规范化要求，为防止在石油钻井过程中，控制设备产生火花而引起可燃性气体发生爆炸，本公司设计生产了油田钻井液循环罐防爆电气控制系统。

A combustion chamber and its igniters,injectors,and other related apparatus in a jet engine or GAS turbine.

爆震是在燃烧室内当火花跳过火花塞电极间隙以后发生的一种二次爆燃。

Therefore, the need for a gasoline engine when to control the spark plug ignition system. This system requires an accurate control of spark plugs and spark discharge energy of the moment, be able to ensure the normal gasoline engine. gasoline engine fuel supply system and ignition system is a high proportion of the gasoline engine fault location.

因此，汽油发动机需要一套控制何时让火花塞工作的点火系统，此系统必须精确控制火花塞放电的时刻和火花能量的大小，才能保证汽油机的工作正常，汽油机的燃料供给系和点火系是汽油机上发生故障比例较高的部位。

Ferrocene and vapor is ignited by mechanical spark or electrostatic spark is most likely to occur.

其中最可能发生的是由高氯酸铵、二茂铁和水蒸气组成的混合体系被机械火花或静电火花点燃。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷