Elizabeth blackburn and jack szostak discovered that a unique dna sequence in the telomeres protects the chromosomes from degradation .
伊丽莎白布兰克本和杰克斯佐斯塔克发现端粒上一段独特的dna序列保护染色体免遭降解。
Rotenone is notorious for its lack of degradation , and copper sticks around for a long , long time .
鱼藤酮因为无法降解而坏了名声,铜也会存在很长很长的时间。
The most anticipated aimed at reduced deforestation and forest degradation , also known as redd + .
最让人期待的目标是减少砍伐森林和森林退化,即redd+。
Behind this economic deceleration is a deeper story of political degradation .
经济减速的背后是政治堕落的加剧。
But for other services , such as downloading video or watching iptv , the degradation of speed will become more noticeable .
但是对于其他服务,下载视频或者是看iptv,这个速度的下降就可以觉察出来了。
Without ownership , herders have no incentive to protect land from degradation and to invest in land improvements .
没有所有权,牧民就没有保护土地不使退化、并投资改良土地的积极性。
Environmental degradation has become a cause of unrest and protest in places where it has ? Affected health .
在环境退化明显影响到健康的地方,它已成为不安定和抗议的一个起因。
Environmental degradation is now so severe that suffocating smog surrounds major highways and transportation arteries routinely .
如今,环境退化非常严重,以致很多交通要道经常受到浓雾的致命侵袭。
And their increasing frequency is an important part of the degradation of the amazon forest-and could be an indicator of large-scale environmental change .
并且它们不断增长的发生频率是亚马逊森林退化的一部分这种变化可以作为一大片地区环境变化的指示器。
If current ocean degradation trends continue , will commercial fisheries become extinct ?