系统危害（Systematic Risk）又称市场危害，也称不身分离危害是指因为某种因素的影响以及变化，导致股市上所有股价的下跌，从而给股票保有人带来损掉的有可能...
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另外，吸烟对于消化系统危害也非常大，容易诱发胃炎等疾病。
In addition, smoking for the digestive system endanger also is very large, and likely to cause gastritis and other diseases.
对于二级反应器系统第一个反应器会起缓冲的作用，所以浓度动态变化对二级反应器系统危害要小些。
First reactor of reactors systems play the buffer role, therefore the dynamic influent conditions do little harm to two reactors systems.
部分频带噪声干扰和多音干扰对常规跳频通信系统危害较大，自适应跳频系统能够改善跳频通信系统的抗干扰性能。
Partial-band noise jamming and multi-tone jamming are two worse cases jamming for conventional FH, and the AFH can approve the performance of AH for anti-jamming.
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