该系统具有较少的硬件失效，主要表现为物理过程的失效。
The system has fewer hardware failures, and it is mainly for the physical process of failure.
什么样的失效可能影响组件（例如处理失败、硬件失效、网络失效）？
What failures might affect that component (e.g. process failure, hardware failure, network failure)?
首先介绍了安全仪表系统在实际应用中的需求以及安全仪表系统的硬件失效概率评估的必要性。
Firstly, this paper brings out the requirement of the Safety Instrument System in practical application and introduces the necessity of the PFD evaluation for SIS.
如果知道失效之间的平均时间和平均恢复时间(例如对于硬件)，则使用这一部分中的计算方法。
If you know the mean time between failures and the mean time to recovery, e.g. for the hardware, use the calculations in this section.
与以下任意非功能特征相关都可能会因为硬件或软件的技术优势而更改甚至失效。
The relevance of any one of the following nonfunctional characteristics can be altered or even invalidated by technology advances in hardware or software.
记录硬件的作用，比如缓冲失效。
请看一个实例，一个合理的假定是UNIX硬件往往在几年的时间失效一次(例如，电力供应中断)，让我们假定3年。
Taking an example, a reasonable assumption is that UNIX hardware tends to fail (for example, the power supply breaks) around once every few years, let's say three.
检查与您的硬件推销员所有BIOS更新，功能失效BIOS记忆选择譬如贮藏或遮蔽。
Check with your hardware vendor for any BIOS updates, Disable BIOS memory options such as caching or shadowing.
文中还提出了差错控制以及硬件设计中总线隔离、失效保护、电磁干扰问题等几个要注意的问题及解决方法。
The article also describes some important problems for hardware design, then it provides the method, such as error control, bus insulation, invalidation protection and electromagnetism interfere.
保护检验，测量及试验设施，包括硬件与软件，免于不当之调整而使其校正设定失效。
Safeguard inspection, measuring and test facilities, including both test hardware and test software, from adjustments which would invalidate the calibration setting.
基于DSP实现了红外图像的硬件处理系统并编写了失效元处理的软件程序，实现了失效元的自动检测和校正。
With digital signal processing (DSP) chip, the hardware and software of infrared image processing system are designed for the purpose of auto-detection and correction of the invalid pixels.
对硬件安全完整性等级的审核分别采用了结构限制的定性分析法和要求时平均失效概率的定量分析法。
Studying on the auditing methods of the safety integrity of hardware and software, the method of "Proven in Use" and the testing method of electromagnetic stamina.
对硬件安全完整性等级的审核分别采用了结构限制的定性分析法和要求时平均失效概率的定量分析法。
Studying on the auditing methods of the safety integrity of hardware and software, the method of "Proven in Use" and the testing method of electromagnetic stamina.
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