Purpose of this paper is to obtain control algorithms for stability of nonlinear systems in critical cases.

研究的目的是要找到非线性系统在临界情形下的稳定性控制算法。

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Inappropriate management of the complications in critical cases can affect the pacing function and even threaten the patient's life.

并发症处理不当会影响起搏功能，重者可能危及到患者生命。本组并发症经及时处理绝大部分对患者预后无影响。

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In many cases it is critical to apply maintenance to a system, but you don't want any negative impact to the client applications.

在很多情况下，向系统应用维护是很关键的，但是您不希望该客户端应用程序带来任何负面影响。

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"We have managed to improve the determination of a vehicle's position in critical cases by between 50 and 90%, " said researcher David Martin.

BBC: Spanish scientists develop more accurate sat-nav system

So some cyclists undoubtedly prefer them and they are in some cases encouraging "critical mass".

BBC: Two more cycling superhighways hit London's streets

Some 40, 000 users have exercised their right to get a copy of all the data Facebook is holding on them but the group is unhappy about the tools the social network provides to users and is critical that, in 13 cases, the social network failed to meet the deadline for data delivery.

BBC: Student group to take Facebook to task in Irish court