This model is based on gas release rate and jet fire model to estimate the hazard area.

该模型是基于气体释放速率和火灾模型来估计危险影响区域的。

youdao

YiyangLoudi section of LuoyangZhanjiang railway lies on karst geologic hazard area with complicated hydrogeology and engineering geology condition.

洛湛铁路益娄段地处岩溶发育区，水文工程地质条件复杂。

youdao

The construction of expressways in the geological hazard area will activate the original geological disease because the deep cut slopes lead to the change of geologic agent.

在地质病害集中的山区修建高速公路时，由于山体切割改变了自然条件下的地质营力，激活了原有地质病害，从而带来了一系列的环境地质问题。

youdao

"The plume heights used in the modelling were underestimated and so were the hazard area, " it says.

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However, if the ball is covered by loose impediments and a player moves it in a hazard, or obstacle area, a penalty of one stroke applies.

BBC: Playing golf around the world

It's very difficult to avoid them so you could fly into them and there's an obvious hazard for helicopters in the area.

BBC: red kite