科学家们以华盛顿、纽约、芝加哥、洛杉矶等大城市为研究对象，用计算机模拟城市景观和恐怖炸弹的细节。
The scientists looked at Washington, New York, Chicago, Los Angeles and other big cities, using computers to simulate details of the urban landscape and terrorist bombs.
当时，海军陆战队在犹他州杜格威试验基地模拟的日本城市上空释放了炸弹蝙蝠。
During that time, the Marines conducted a successful proof of concept at Dugway Proving Grounds in Utah, where they released bats over a mock-up of a Japanese city.
该方法选用航空炸弹质点弹道模型，采用虚拟风洞数值模拟得到的炸弹阻力定律，结合实弹靶试数据，对弹道系数进行了符合计算。
In the method particle trajectory model of certain aviation bomb is chosen, drag law by the numerical simulation based on the virtual wind-tunnel is adopted.
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