系统发生的

The probabilities all possible risk incidents are very small. Even some incident appears it won't be destructive to the system.

所有可能发生的风险事件均属小概率事件，如有个别事件发生，也不会对系统构成毁灭性打击。

This phenomenon results in the generation of self-excited vibration of down coiler main drive system.

生产X70(14.7mm×1535mm)管线钢时，因带钢进入地下卷取机瞬间与卷筒发生打滑飞车现象，而导致地下卷取机主传动系统发生强烈的自激振动。

To realize real time fault detection and diagnosis when multi sensors have faults simultaneously in the linear control system, a set of two ellipsoid confidence region s was constructed based on two ellipsoid overlap method.

双椭圆相交法可以用于多个传感器同时发生故障的线性控制系统，不仅能够快速、准确地检测出故障发生的时刻，并且能将故障定位到发生故障的传感器。

The Chinese herbal medicine is sweeping the whole world at present. But people are worry about the interaction of herb and the prescription of doctor. The medical personnel should be serious for facing this topic. The warfarin is an oral anti-coagulant. It is often used prescribed by doctor when the abnormal blood coagulation is occurred in the cardiovascular system. So, it is called as the blood thinner. Unfortunately, the warfarin often interacts with many medicines even foods, so its drug effect is often influenced.

目前中草药正风靡全球，然而其与医师处方用药并用后所产生的交互作用却令人担忧，这个议题对身为医疗人员而言应当严肃且认真来面对。warfarin是一种口服抗凝血剂，经常在心血管系统发生异常凝血时被医师处方使用，因此被誉为血液稀释剂"blood thinners"，不幸地是warfarin会与许多药物、甚至食物发生交互作用而影响其药效。

Some skin cancers are doing PUVA, arsenic occurs after treatment, or coated with coal tar, pine oil distillation system after the application of immunosuppressive drugs, and some had no apparent incentive.

有的 皮肤癌是在进行PUVA、砷剂治疗后发生或在外涂煤焦油、松馏油和系统应用免疫抑制剂后发生的，有的则无明显诱因。

In real flight, multiple sensors of aircraft engine control system may fault at a time. In order to solve this problem, a revised multiple-failure-hypothesis based testing is investigated. This approach uses multiple Kalman filters, and each of Kalman filter is designed based on a specific hypothesis for detecting specific sensors fault, and then uses WSSR (Weighted Sum of Squared Residual) to deal with Kalman filter residuals, and residual signals are compared with threshold in order to make fault detection decisions. The simulation results show that the proposed method can be used to detect multiple sensors soft failures fast and accurately.

一般认为两个以上传感器同时发生故障的概率较小，但实际上不能排除其发生的可能性；提出了一种改进的多重故障假设方法来解决航空发动机控制系统多传感器同时发生软故障的问题，这一方法采用一组卡尔曼滤波器，每个滤波器对应一个被检测传感器的故障模态；采用残差加权二乘方处理滤波残差并与门限值作比较来判断是否发生故障；仿真结果表明，所提出的方法能有效解决多传感器软故障的检测与隔离问题。

Exploration of the macro-management in agricultural risk:(1) Discern and define risk patterns and risk system with open complex giant system theory, then summarize four major risk systematic patterns: Namely systematic levels of risk distribution, risk convergent sport, risk transmit sport and risk scatteration.

农业风险宏观管理的探索：（1）用开放的复杂巨系统理论来定义风险系统和识别风险运动规律，总结概括出了风险系统运动的四大规律：即风险分布的系统层次性、风险发生发展过程的汇聚规律、风险运动的系统传递规律和风险系统中的风险扩散规律。

Secondly, in spite of the reliability of software and control system, the mechanical system reliability of automatic yarn evenness tester is researched using FTA, and fault trees of each unit and system are established by analyzing its structure and function. According to system reliability theory and events probability, the mechanical system fault tree is analyzed by means of qualitative analysis and quantitative calculation, the system weak parts are found , and the ways are put forward to improve the mechanical system reliability.

其次，在不考虑软件及控制系统可靠性的情况下，利用故障树分析的方法，对全自动条干仪机械系统可靠性进行了分析研究，通过对其结构、功能的分析，建立了单个单元的故障树和系统的故障树；并根据系统可靠性的原理和事件发生的概率，进行了定性分析和定量计算，找出了系统的薄弱环节，提出了提高机械系统可靠性的途径。

The rub-impact between rotor and stator often occurs because the rotor shaft stiffness decreases following the occurrence of the crack in the rotor shaft, and thus the coupling fault with rub-impact and crack is hackneyed fault type. Based on the nonlinear dynamical model of the cracked rotor-bearing system with rub-impact, the stability of the periodic motion and instability way were studied in unbalance-rotating speed plane and rotor/stator clearance- rotating speed plane and crack depth- rotating speed plane, and the main results were validated by the experiment.

转子轴承系统裂纹故障的出现会引起转子系统转静件之间碰摩故障的发生，因此裂纹碰摩耦合故障也是转子系统常见的故障类型，本文在裂纹碰摩耦合故障转子轴承系统的非线性动力学模型基础上，分析了系统在不平衡量-转速、碰摩间隙-转速、裂纹深度-转速等参数域内，周期运动的稳定性及其失稳规律，并用实验验证了主要理论结果。

The MSHA cited the Massey mine for hundreds of violations in recent years, including 10 so far this year related to legal requirements for ventilation systems to control methane and highly explosive coal dust.

MSHA称，Massey Energy Co。旗下的这座煤矿近年来发生过数百起违反矿山安全规程的事件，今年迄今为止就有10起违反煤矿通风系统要求的事情发生，这一系统旨在控制矿井内甲烷和高爆炸性煤尘的浓度。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。