Replace the battery every two years — critical level log records will begin to appear before that.

每两年更换一次电池——否则会出现临界级别的日志记录。

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The load on this server has hit a critical level, and users and customers alike are complaining about performance.

此服务器上的负载已经达到了临界水平，用户和客户都对性能感到不满。

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The likelihood of strategic default rises more quickly once the rate of local home foreclosures reaches a critical level.

一旦当地的收房率达到临界水平，策略性违约的可能性就会大幅上升。

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"The critical part at the end of whatever the level of study you are going to do is to get yourself involved in something that puts you into a laboratory."

VOA: standard.2010.05.10

The curriculum outline activities that address learning skills in each learning grade level, including letter writing, data collection, reading, research skills and presentation skills, critical thinking and collaborative working in small groups.

教程总体活动注重,培养学生在每个年级水平的,学习技巧，包括书信写作，数据搜集，阅读，研究技巧，展示技巧，批判性思维,还有小组的团队协作能力。

麻省理工公开课 - 媒体、教育、市场课程节选

And not be too critical or expect that you should be at a very high level when you're just beginning.

不要太挑剔，也不要奢望自己刚开始的时候就可以达到很高的水平。

学外语的时候 - SpeakingMax英语口语达人

In a slow-growing economy, that critical level will be reached by fewer firms (although eventually companies will cut their costs to suit the new conditions).

ECONOMIST: Has the tide turned for corporate profits?

Environmental health officers from Blaenau Gwent council told the meeting that monitoring suggested air pollution was not at a critical level, but this would continue.

BBC: Anger as waste fire in Nantyglo burns for 10 days

Once tax rates surpass a critical level, tax revenues actually fall.

FORBES: Listen To Arthur Laffer