| 1. | He produced an electric spark across a gap between two metal balls by applying an electric current to them .
他把电流接通到两个金属球上而在其间的间隙处产生火花。 |
| 2. | Rubbing stones together produces sparks to start a fire
用石头相擦可产生火花用来引火 |
| 3. | Do not spray near naked flame or other ignition sources such as stoves , pilot lights and running electrical appliances
切勿在明火或其他可能会产生火花的地方，例如炉具、热水炉火种和使用中的电器附近施用喷雾剂。 |
| 4. | Percussion methods of fire - lighting date back to paleolithic times , when some stone age tool - makers discovered that chipping flints produced sparks
打击生火方法的日期要返回到旧石器时代，当一些石器时代工具生产者发现打火石碎片产生火花。 |
| 5. | Main purpose : it is widely used in steady speed mix , high speed disperse and sand will lab process . it adopt mouse cage motor , so no sparkle phenomena when working
主要用途:广泛适用于稳速搅拌,高速分散,砂磨实验过程。由于采用了笼式电机,运转时不会产生火花。与有刷电机相比,无碳刷磨损的问题,噪声小。 |
| 6. | Objects in the game roll down slopes and bounce realistically off each other ; wooden items splinter when shot at and can be set on fire ; metal items create sparks when scraped against walls
游戏中的物体在从斜坡上滚下时颇具真实感的互相碰撞；木制的东西中弹后被打成碎片，而且还可以燃起来；金属物与墙壁摩擦会产生火花。 |
| 7. | People ' s self - reports also tally roughly with what electrodes planted on their scalp reveal about the frequency and voltage of electrical waves in their left forebrain , which sparks up when they are feeling good
人们自己的报告也与植入他们头皮的电极显示的他们左前脑电波的频率和电压基本一致，当他们感觉好时电极便会产生火花。 |
| 8. | Abstract : this article introduces the causes of the fire accident whenelectrified circuit is working , e . g . 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。 |
| 9. | Parts which can ignite an explosive atmosphere are placed in an enclosure which , if there is an ignition of an explosive mixture internally , will withstand the pressure and prevent the explosion being transmitted to the atmosphere around the enclosure
将设备在正常运行时，能产生火花电弧的部件置于隔爆外壳体，隔爆外壳能承受内部的爆炸压力而不致损失，并能防止传播到外壳外。 |
| 10. | Incondition of surface anti - corrision and insulation coat of metal and tiny hole of steel where resistance and crack is very small , when supplying a high voltage , gas crack will be punctured and electric spark discharging will occur , now send a pulse signal to the alarming circuit the alarmer can send out sound and light to alarm . we can do leak hunting on the coating according to this principle
金属表面绝缘防腐层过薄、漏铁及漏电微孔处的电阻值和气隙密度都很小，当有高压经过时就形成气隙击穿而产生火花放电，给报警电路产生一个脉冲信号，报警器发出声光报警，根据这一原理达到防腐层检漏目的。 |
