The working condition of mechanical components can be indicated by their stress states, whose measurement and evaluation can also improve the security, reliability and stability of the products.
零件的应力状况能够反映机械构件的工作状态，对它的有效检测和评估为提高产品的安全性、可靠性和稳定性提供了保障。
Based on this mathematics model, the optimum signal-processing circuit, having high reliability and high stability, is designed and applied to the automatic measurement system of the focusing units.
基于该数学模型，优化设计了高可靠性、高稳定性的信号调理电路，并在聚焦元件自动测量系统中得到了实际应用。
The implemented electric meter has simple structure, high measurement precision and reliability.
所研制的电表结构简单、计量精度高、抗干扰性好。
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