第二部分主要是对突发事件的概念进行界定，指出它在新闻传播层面的重要价值。
The second part defines the concept of the emergencies, as well as its important values in terms of journalism and communication.
以广告传播层面为切入点，对数字化背景下广告摄影的传播特点进行了分析与归纳。
This article analyses and sums up the advertising photography communication characteristics under digitization background from advertising communication study.
另一个受到合成生物启发的疟疾工程目标是通过从媒介层面防止疾病的传播，也就是建立一个基因体系作用在蚊子种群当中。
Another synthetic biology inspired malaria project aims to stop transmission of the disease at the level of its vectors by engineering a genetic system to establish itself in a mosquito population.
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