The current progress and development trend in the study of safety theory of field flow in goaf are analyzed.

分析了当前采空区场流安全理论研究的最新进展和发展趋势。

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It is defined pipe flow flowing that the gas flowing in the tunnel, it is defined the field flow flowing that the gas flowing in the mine space and cave.

我们将气体在巷道中的流动称为管流流动；将气体在采场空间以及硐室内的流动称为场流流动。

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The influence on the growth morphology of the spherical crystal in the undercooled melt imposed by the far field flow is studied by the asymptotic method.

利用渐近分析方法研究了远场来流引起的对流对过冷熔体中球状晶体的生长形态的影响。

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Being so far north, much of region - some 146, 000 square km - is covered by glaciers and ice caps (a type of ice field where glaciers flow off in many directions).

BBC: Canadian glaciers face 'big losses'

U.S.-based NGO Water for People is helping lead the charge in this area with the development of a new system called FLOW (Field Level Operations Watch).

CNN: Going with the 'FLOW' towards better sanitation

First oil is expected to flow from the field in late 2014.

BBC: Aberdeen firm Wood Group secures $50m North Sea deal