由于水和卫生的不稳定状况，特别在城市和罗安达省，控制活动难以开展。
Control activities are difficult in view of the precarious water and sanitation situation, particularly in urban areas and Luanda Province.
尾矿堆积坝中尾砂透镜体具有复杂的分布状态，对坝体的稳定状况有极大影响。
Tailings lenticle with complicate distributing state in tailings fill dam has great influence on the stability of the dam.
结果分析表明，传统可靠度分析结果偏于不安全，而利用模糊随机可靠度来评价边坡稳定状况更趋于合理性。
It is found that results of the traditional reliability method are less securable and those of fuzzy-random reliability method are more reasonable.
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