We must seek immediate solutions for problems leading to the rapid depletion of the earth ' s ozone layer 我们必须寻求立即解决引起地球臭氧层快速损耗的问题的办法。
Greenhouse effect , the damage in the ozone layer and acid rain are the three main environment problems in the global 温室效应，臭氧层破坏和酸雨是当今全球性的三大环?问题。
Greenhouse effect , the damage in the ozone layer and acid rain are the three main environment problems in the global 温室效应，臭氧层破坏和酸雨是当今全球性的三大环?问题。
Mr . fraser led a study about the ozone layer for the united nations and the world meteorological organization 他领导了一个研究小姐，为联合国和世界气象组织进行臭氧层的研究。
It concentrates inside a layer that above the ground about 20 - 25 km , the scientists call this layer as ozone layer 是大气中的微量元素，是一种具有微腥臭浅蓝色的气体，主要密集在离地面
Uvb is partially absorbed by the earth s ozone layer and in the atmosphere , with the remainder reaching the earth s surface 短波紫外光部分会被臭氧层及在大气中吸收，馀下的才会落到地面。
The ozone layer lies about 9 - 19 miles above the earth , filtering harmful ultraviolet rays that can cause skin cancer 臭氧层分布于地表上方9至19英里处，可阻隔导致皮肤癌的紫外线射入地球表面。
Halons were used as an effective agent in fire extinguishers , and they are more potent than cfcs in damaging the ozone layer 而海因具有特别的防火效果，常作为灭火剂，但它破坏臭氧的能力更甚于cfc 。
" these supernovae would have blown away our protective ozone layer , " said dr narciso ben - tez , of johns hopkins university 约翰斯?霍普金斯大学的纳西索?贝尼特斯博士说: "超新星可能破坏了我们的臭氧保护层。
Meanwhile , the hole in the ozone layer was equal in size to the previous record of 2000 with recovery not expected for another 50 to 60 years 同时，臭氧层破洞的面积则与2000年的纪录相等，至少还要50到60年才能恢复。
