The model involved in particle charging equation, electric field and charge conservation equation, gasconservation equations of mass and momentum, particle mass and momentum equation.
Conservation of the world's biota, as we know it, will depend upon rapid, steep declines in greenhouse gas emissions.
正如我们所知道的,保护世界上一个地区的动植物,将依赖于温室气体排放的急剧下降。
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Gilly Llewellyn, from the conservation organization WWF, says pollution and oil and gas drilling are among many threats that could damage the Coral Sea's ecosystem.