In the spark-ignition engine, recirculating some of the exhaust gas reduces the emission of nitrogen oxides . 在火花点火的发动机中，再循环的一部分废气减少了氧化氮的有害污染。
Detonation is a secondary explosion that occurs in the combustion chamber after the spark jumps the sparkplug gap . 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。
The sparker was originally developed for fundamental studies of underwater sound propagation and of subbottom geology . 火花发生器原来是为了进行关于水下声波传播及海底地质的基础性研究而制造的。
"you are just egocentric. you never have any enthusiasm, you never come out with any spark towards me," she said, pondering . 她思考着说，“你自私自利。你从未有过激情，在我面前从未放出过什么生命的火花。”
One day as he was sitting unhappy in the white castle, a thing occurred that kindled a spark of hope in his despairing mind . 有一天，他正闷闷不乐地坐在白色城堡时，发生了一件事，使他那绝望的心灵燃起了希望的火花。
Throw a stone into the water, and the myriad of tiny bubbles that are created flash out a brilliant glare like blue theatrical fires . 在水里扔块石头，泛起的无数小泡沫，霎时间闪出了一道亮光，好比舞台上的蓝色火花。
For firing of the mixture in the cylinder every time spark occurs, the air-fuel ratio must lie in a fairly narrow range . 为了在气缸里每一时刻发生一次火花时混合气的燃烧更理想，空一燃混合比必须限于相当狭窄的区域内。
If we put some gasoline vapor into the compressed air and then applied a lighted match or spark to the air-vapor mixture, the gasoline vapor would burn . 如果我们将少许汽油蒸气送入压缩空气，然后给空气--汽油蒸气混合气一个点燃的火种或火花，汽油蒸气就会燃烧。
Sparky to big red . do you read me ? come in 火花对红大个讲话你听我了吗？请回话
Dc technology has no problem with capacitance 直流火花机技术对用于电容没有问题。
