在前面板的右侧提供了一个减光控制旋扭，由此也可以激发灯泡试验。
A dimmer control knob is provided on the right side of the front panel which also activates the lamp test.
人们经常会举爱迪生发明灯泡的例子，在他试验了上千种材料后终于找到了一种合适的材料发明了白炽灯。
An example he frequently USES is when Thomas Edison tested thousands of materials before he discovered the right one for his incandescent lamp.
托马斯·爱迪生发明了灯泡，他从1878年开始试验，到1879年的10月21日发明了一个可以正常工作的电灯泡。
Thomas Alva Edison invented the light bulb. He began his experiments in 1878 and by 21 October 1879 he made a working electric light bulb.
本文主要涉及以下三方面问题：1。从可靠性加速试验原理出发提出一种可供现场实用的信号灯泡老炼方法。
This paper concerns mainly: 1. From the principle of accelerated reliability test, a practical ageing method of signal lamp bulbs for basic unit use is proposed.
试验分别对前、后置灯泡贯流泵装置型式进行能量试验。
In this experiment the energy response are compared to bulb prefixing through flow pump and bulb postposition through flow pump.
埋首研制灯泡之时，他曾说：「之前的700次试验都不是失败，而是成功证实了这700种方法都不可行。
While working toward the invention of the light bulb, he once said, "I have not failed 700 times. I have succeeded in proving that those 700 ways will not work."
爱迪生没有停止试验，克服了许多困难之后，终于制成了第一只灯泡。
Edison did not stop trying; and after a lot of trouble he made this first lamp.
爱迪生没有停止试验，克服了许多困难之后，终于制成了第一只灯泡。
Edison did not stop trying; and after a lot of trouble he made this first lamp.
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