To make a good use of abundant non-gaseousemission, renewable water potentials is an obligatory choice in our energy policy.
利用好丰富的、具有无温室气体排放、可再生的水能资源是我国能源政策的必然选择。
2
Messier 27 (M27) is an excellent example of a gaseousemission nebula created as a sun-like star runs out of nuclear fuel in its core.
Messier 27 (M27)是个气体发射星云的典型例子，它是由于类似太阳的恒星耗尽了其核心的核燃料而产生的。
3
Some relevant experiments have been done in the technology of gaseous mercury sample and analysis by solid sorbent, which is also used in the measurement of mercury emission from an i.