并利用该方法对烟雾扩散的非定常瞬态积分浓度场进行了实际测量。
By this method the untouched, unsteady, instantaneous concentration field has been measured.
如果对烟雾的浓度积分，浓度就是区域d中，单位体积的烟雾的量，我们就得到了烟雾的总量。
If I integrate the concentration of smoke, which means the amount of smoke per unit volume over d, I will get the total amount of smoke in d, except, well, let's see.
积分速率定律表明了在反应中物种的浓度是如何受时间的影响的。
The integrated rate law shows how the concentration of the species in the reaction depends on time.
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