该鸟为一夫一妻制，雌鸟担任筑巢、孵卵、育雏任务，雄鸟主要担任保卫领域及警戒任务。
The bird is monogamous, the female answers for nest building, hatching and brooding, the male answers for guarding home range and alerting.
水声网络必将面临巨大的安全威胁，在极端情况下，水声网络可能被破坏而无法继续担当警戒任务。
Underwater acoustic networks will face great security threats. At the uttermost circumstance, it will not work properly for the surveillance task.
同样，多阶段检测也可分为三种OOT警戒水平，但是这项任务太具有挑战性，不是那么简单。
Similarly, tests with multiple stages can be classified into the three OOT alert levels, but this task is much more challenging and less straightforward.
该舰入列后，将主要担负巡逻警戒、护渔护航、反潜作战、对海作战等使命任务。
It will mainly conduct such missions as patrol, guard, escort, anti-submarine warfare and maritime combat after its commissioning.
你的任务是为一个和你部署在一起的炮兵前进观察小组提供警戒。
You mission is to provide security for an artillery forward observer team collocated with your squad.
确定各水文站保证水位和警戒水位，是新建水文站的首要工作任务之一。
To determine the safety water level and the warning water level is of chiefly assignment for the new gauge.
确定各水文站保证水位和警戒水位，是新建水文站的首要工作任务之一。
To determine the safety water level and the warning water level is of chiefly assignment for the new gauge.
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