Flying through a cloud of volcanic ash poses a significant hazard to airlines.
飞过密布火山灰的云层，对航空公司构成了极大的威胁。
The natural damming of rivers by landslides is a significant hazard in many areas. Landslide damming is particularity common in mountainous regions.
崩滑堵江事件在世界范围内，尤其在山区广泛存在。
Initial nuclear radiation will be a significant hazard with smaller weapons, but the fallout hazard can be ignored as there is essentially no local fallout from an air burst.
相比小型武器，早期核辐射的危害是很严重的。但是放射性尘降的危害可被忽略，因为空中爆炸基本上不会给地面带来尘降。
Therefore, the council is pleased to announce that the current system of garbage sites does not pose a significant health hazard.
因此，委员会很高兴地宣布现有的垃圾场系统不会对健康产生严重的健康危害。
Leachate from domestic landfills is a significant environmental hazard.
垃圾渗滤液从国内堆填区是一个重大的环境危害。
Dust accumulation of more than 0.8 millimeters - covering at least 5 percent of a room's surface poses a significant explosion hazard.
粉尘沉积超过0.8毫米，覆盖房间表面达5%或以上时，会有重大的爆炸隐患。
The result of the ANOVA model indicates very clearly that there is significant variation in local hazard mitigation policy adoption at both two levels of analysis.
方差分析模型的结果表明得很清楚，有明显的变化，在当地的风险缓解政策选择在两个两个层次的分析。
So cement products do not pose a significant radiological hazard when used for building construction.
因此，水泥制品不构成重大建筑施工中使用时的辐射危害。
Cement does not pose a significant radiological hazard when used for construction of buildings.
水泥不构成重大建筑施工中使用时的辐射危害。
The element can be very soluble in water and moves easily through the environment when in certain forms, so it is considered a significant environmental hazard.
该元素易溶于水，当以某些形态存在时，很容易在环境中流转，因此它被认为是一个重大的环境危害。
Among the 15 factors related to the T-staging, the significant factors influencing the survival was presented in the order of proportional hazard.
通过对原发病灶15个因素的筛选，按比例危险度的大小列出了主要影响生存的受侵部位。
Great potential safety hazard exists: a significant safety accident can occur with a slight negligence.
这存在着很大安全隐患：稍一疏忽，就可能出现重大安全事故。
Great potential safety hazard exists: a significant safety accident can occur with a slight negligence.
这存在着很大安全隐患：稍一疏忽，就可能出现重大安全事故。
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