It is indicated that nitrogen and phosphorus control should be intentionally taken as key task in order to efficiently control eutrophication in Dianchi lake.

为有效治理滇池的富营养化，应把控制氮磷明确作为核心任务。

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Although this level cannot be determined in the abstract as it is a national task, key elements are set out to guide the priority setting process.

由于这是一项国家任务，所以不能抽象地确定这一水平，但是，提出了关键要素以指导重点制定工作。

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Another one is that the target flight module designed as required for follow-on space LABS can test and verify the key skill while completing the task of rendezvous and docking.

二是目标飞行器按后续空间实验室的要求设计，可在完成交会对接任务的同时，验证部分关键技术；三是还可同时开展科学实验和技术试验。

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Executives have cited the difficulty of that task as a key reason for the long lead-up to the new pay system and have been testing and debugging the system.

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Whatever steps are taken, or probably not taken, the key task remains that set out in Ehud Yaari's January report, as he put it, "to minimise the risk of the Israeli-Egyptian peace treaty imploding under the pressures of the wild Sinai frontier".

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Every now and then, characters have to perform a task that could alter the story's events, such as hunting down a key card to stop a speeding train.

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