但安全专家说，它包括了生物和化学传感器技术、视频、无线通信，以及模拟潜在污染物蔓延的计算机软件。
But security experts say it contains biological and chemical sensor technology, video, wireless communications, and computer software to simulate the spread of potential contaminants.
该病毒显示出其既可在当地逐渐蔓延，也可通过被感染的猪和被污染的猪肉产品运输传播到更广泛的地理区域。
The virus shows both progressive local spread and also that it can be transported over wider geographic areas through the movement of infected swine or contaminated pork products.
最终污油带蔓延至据搁浅点约500英里以外并污染了数千英里的海岸线。
It would eventually spread almost 500 miles from the original crash site and stain thousands of miles of coastline.
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