A carbon nanotube cathode with high emission current has been fabricated with the screen printing method.

研究了利用丝网印刷法制备碳纳米管阴极，以获取很大的发射电流。

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Transition metal ion-doped glass-ceramics can combine the advantages of easy process ability of glass and high emission efficiency in broadband of transparent crystal.

过渡金属离子掺杂微晶玻璃结合了玻璃的易加工性和透明晶体具有高效宽带发光的优点。

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Dual functions can also be achieved with high emission efficiency by benefiting from the photoconduction of the semiconductor nanocrystal and the electroluminescence of the polymer.

同时，利用无机纳米半导体的光导特性，这种复合体系也可以制成光导与电致发光双功能器件，且其发光效率可有较大幅度提高。

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Absorption is just the opposite of emission, so instead of starting at a high energy level and dropping down, when we absorb light we start low and we absorb energy to bring ourselves up to an n final that's higher.

吸收就是发射的逆过程,与从一个高能量到低能量不同，当吸收光时，我们从低能量开始,吸收能量到一个更高的能量。

麻省理工公开课 - 化学原理课程节选

we start high and go low, we're dealing with emission where we have excess energy that the electron's giving off, and that energy is going to be equal the energy of the photon that is released and, of course, through our equations we know how to get from energy to frequency or to wavelength of the photon.

当我们从高到低时，我们说的,是发射,电子有多余的能量给出，这个能量等于，发出,光子的能量，当然我们可以通过方程,从能量知道，光子的频率，和波长。

麻省理工公开课 - 化学原理课程节选

But the scientists are confident the object is a pulsar, rather than a regular neutron star, because of its high-energy emission and the fact that it doesn't show up in optical wavelengths.

MSN: Runaway star may be fastest pulsar yet - Technology & science - Space - Space.com | NBC News

This combination of assured single-photon emission at high rates driven by power no different from a battery, Dr Hoefling said, brings QKD much closer to commercial application.

BBC: Quantum key distribution with single photons

"At these rates, it certainly sounds like we'll end up towards the high end of the emission scenarios considered by the IPCC, " commented Myles Allen from Oxford University, one of Britain's leading climate modellers.

BBC: NEWS | Science/Nature | Carbon emissions show sharp rise