spark-free copper nail

spark production power tool

能产生火花的动力工具

Research on Servo Motion and Tool Compensation in Electrical Discharge Milling Based on Intelligent Control Techniques;

电火花铣削加工中伺服运动及工具补偿智能控制技术的研究

The ignescent metla was used to create a fire.

能发出火花的金属被用来产生火。

a small dynamo with a secondary winding that produces a high voltage enabling a spark to jump between the poles of a spark plug in a gasoline engine.

带有复电绕组的发电机产生的高电压能够使在汽油机中的火花塞的两极间的电火花跳动。

EDM (Electric Discharge Machine)

电火花(模具工业)

Interference Prediction in the Automatic Ultrasonic EDM Compound Processing of the Mould Curved Surface

自动超声电火花复合加工模具曲面的干涉预报

an induction coil used to create sparks.

能够产生火花的感应线圈。

PCs have become personal activity tools, not personal productivity tools.

PC机已成了个人活动的工具，而不是个人生产力工具。

Productivity is the quality of being productive.

生产力是具有生产能力的性质

The quality of being productive.

生产力具有生产能力的性质

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。

With strong manufacture ability, Xian Yong also is good at mold developing and desiring.

具有自己的研发设计产品能力及模具生产能力。

An ignescent tool was used when camping.

能生火的工具在露营时被使用到。

The productive forces consist of two factors, labourers and tools.

生产力就是两项：劳动者和工具。

can emit sparks or burst into flame.

能够发出火花或者产生火焰。

powder-actuated tool

由起爆火药驱动的工具

It is integrated, versatile and powerful in production technology.

生产工艺配套、设备完整，具有极强的机械加工能力。

Yet electricity can entice smoke sent out by an extinguished light.

然而电却能吸引由熄灭的火花产生的烟。