lt is discussed in detail that CFC, NOx and volcanic eruption destroyed ozone layer.
描述了氯氟烃(CFC),氮氧化物(NO_x)与臭氧的反应,井详细论述了CFC,NO_x及火山爆发对臭氧层的破坏作用。
The effect of 9 volcanic eruptions with VEI(volcanic eruption index) ≥ 4 on solar radia tion and air temperature in Xinjiang is analyzed based on the data of air timperature from 16 meteorological stations and the data of solar radiation from 8 solar radiation stations in Xin jiang.
本文利用1961－1993年新疆16个气象站气温资料和8个日射站的辐射资料，分析了火山爆发指数VEI≥4级的9次强火山爆发对新疆太阳直接辐射和气温的影响。
The eruption of a volcano is spontaneous.
火山爆发是自发的。
ash that was thrown By an erupting volcano.
火山爆发喷到空中的灰
volcanically created landscape.
火山爆发形成的地形。
cloud due to volcanic eruptions
火山爆发所造成的云
There have been several volcanic eruptions this year.
今年有好几次火山爆发。
Dense clouds of ash were generated during the volcanic eruption.
火山爆发时, 产生了浓密的火山灰云。
The eruptions were associated with the development of a number of giant craters (calderas).
随着火山爆发形成了多个大火山口(破火山口)。
Smoke and flames came out of the volcano as it erupted.
火山爆发时，浓烟和火焰一起喷了出来。
Pulverized particulate matter ejected by volcanic eruption.
火山灰火山爆发喷射出来的粉末状颗粒物质
A large cloud has developed from Io's volcanic explosions.
罗卫星上的火山爆发形成了巨大的火山云。
Volcanic eruptions are usually preceded by earthquakes.
在火山爆发之前常发生地震。
As the volcano erupted, the villagers fled for lives.
当火山爆发时，村民们赶紧逃命。
And it made me reel when it did come.
可是火山爆发时却惊得我目瞪口呆。
A series of volcanic eruptions developed along the fault.
一系列的火山爆发正在断层带酝酿。
Vesuvius erupts once in a while.
维苏威火山偶尔爆发。
An extinct volcano has ceased to be able to explode.
死火山已失去爆发能力。
an outburst of heavy rain; a burst of lightning.
地震引起火山的爆发。
Six other volcanos were still erupting.
还有六个火山仍在爆发。