... equal density centrifugation 等密度离心 environmental density 环境密度 energy density 能量密度 ...
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The tests were carried out in a constant volume tunnel in which the flow velocity, the environmental density and its temperature can be changed.
试验在专门研制的可变流场速度、可变环境密度和可变环境温度的定容风洞中进行。
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This growing population density has spawned a host of environmental issues and creative solutions.
FORBES: Japan's Green Gold Mine
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