Some scientists hypothesize that the extinction of the dinosaurs resulted from the effects of an asteroid collision with Earth.
一些科学家假定，小行星撞击地球导致了恐龙的灭绝。
Those unable to match the migration speeds needed to escape the effects of global warming could vanish into extinction.
如果跟不上逃避全球变暖影响所需的迁移速度，那些动植物有可能会灭绝。
Modified organisms may interbreed with natural organisms and out-compete them, leading to extinction of the original organism or to other unpredictable environmental effects.
被改造过的生物体和自然生物体混配，从而更具竞争力，使原有物种走向灭绝，或给环境带来未知的影响。
And the effects of small changes of thin film thickness, incident angle and wavelength on extinction index of this polarizer are also studied.
同时研究了薄膜厚度、入射角及波长的微小变化（或误差）对于该偏振器消光率的影响。
The extinction of key species could have cascading effects throughout the food web.
关键物种的灭绝可能通过食物链产生级联效应。
In chapter 4, the effects of impulses on the persistence and extinction of predator-prey systems are studied thoroughly.
第四章我们建立并系统地分析了脉冲效应对捕食系统持久性和灭绝性的影响。
Unfortunately, for the misleading superstition of the elixir effects that tiger bones, blood and other organs have, the tigers are closer to the verge of extinction ever more.
糟糕的是过去很多人相信它的骨、血或器官具有滋补的效果，使得它们濒临灭绝的处境益形危险。
The effects on the extinction ratio of double crystal electro-optic Q-switching were analyzed in this paper.
分析了影响双块晶体电光调q消光比的各项因素。
The effects on the extinction ratio of double crystal electro-optic Q-switching were analyzed in this paper.
分析了影响双块晶体电光调q消光比的各项因素。
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