Feeding rate, the kiln incline degree and the kiln rolling speed are adjusted to study the changes of particles mean residence time (MRT), mean volume flow (MVF) and loading rate in the kiln.

通过改变给料率、回转窑倾角、回转窑转速来考察它们对物料在回转窑内的平均停留时间(MRT)、平均体积流率(MVF)、填充率的影响。

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In late 2009, economists at the Bank of Italy showed that the volume of searches for terms like "job search engine" is a good indicator of coming changes in the unemployment rate in the US.

在2009年年末，意大利银行的经济学家显示了搜寻条件如“职位搜索引擎”的搜索量，这能够对美国的即将面临的失业率变化进行很好的预测。

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Objective: To investigate the changes of the rate and the volume of blood flow of vertebral artery by the foramen arch of atlas.

目的：通过动物实验研究寰椎椎动脉沟环对脑血供的影响。

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