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.
早期发现不稳定状况和临界状态，对于改善操作和提高产品质量有很大好处。
Unstable and critical situations are detected at an early stage with significant benefits in operational performance as well as improvement of product quality.
了解情况的人知道该公司状况不稳定。
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