Finally, the right project with of approximate calculation difference of light distance is given.

最后给出了两种光程差近似计算的正确方案。

youdao

Afterwards, DCJTB was doped into MEH-PPV and fluorene-based material PF60C10, and the difference of light-emitting performance between these two materials was analyzed and discussed.

然后将DCJTB分别掺入MEH-PPV和芴类材料PF60C10中，观察并比较器件发光特性，对性能差异进行了分析和讨论。

youdao

The cause of the opening and closing is probably the difference in light.

开启和关闭的原因可能是光线的不同。

youdao

The key difference is that instead of focusing the light on a strip of photochemical film as in traditional cameras, digital cameras use an image sensor, called a charge coupled device (CCD), to capture the image.

FORBES: Technology briefing

Since the speed of light through a cable is consistent, the difference is entirely in the length of its path.

WSJ: A Dive Into the Digital Deep

Because radiation from the Crab nebula is so energetic, the electrons that created it must have been travelling very close to the speed of light so close that the difference between the two speeds would bump up against Planck-scale graininess, and show up in the spectrum of the radiation.

ECONOMIST: Planck-scale physics