The calculation models are set up on average speed and Max speed in back field and jet effect distance, new theoretical reference is provided for effective ventilation in heading fa.

给出了回流区平均速度、最大回流速度及射流作用距离的计算模型，为掘进工作面合理有效通风提供了新的理论依据。

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A team of Danish researchers, heading northwards on a Swedish ice-breaker, has just set sail from Norway.

一队丹麦研究人员刚刚乘着一艘瑞典破冰船从挪威向北起航。

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As for Mr Noor and his family, they still seem set on crossing the bridge and heading into Ethiopia.

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The chartered bus was heading from Greensburg to Millersville, where the Griffins were set to take on an opponent from Millersville University in a Division II matchup slated to start at 1 p.m.

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"Estimates show that during the busiest hour in the morning peak period, the number of passengers on the Great Eastern main line heading to Liverpool Street is set to increase by 49% by 2031, from 16, 500 to 24, 600, " a statement said.

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