For the present experimental conditions, it is found that the flame propagation velocity is a weak function of dust concentration in cornstarch dust clouds.

在所考察的实验条件下，粉尘浓度对于玉米粉尘火焰传播速度的影响不大。

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At the same time, they must be sensitive enough to transform even weak TV signals into clear images and function in sheltered places, like garages, and at moderate speeds, such as on trains or in fast-moving cars.

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"Where we have seen certain bonds under-perform, it's normally a function of poor credit quality, weak structure or overly aggressive pricing, " he said.

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The decline is a function of several factors, but it is consistent with an outlook for weak credit demand and hence low economic growth.

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