The index system of a trade has characteristic of the time, it exists under certain economic environment and era background.
一个行业的指标体系是有时代特征的，它存在于一定的经济环境和时代背景下。
The Empirical research result certificate the price-earnings ratio index time series of Shenzhen composite B-share index having the mean reversion characteristic.
实证研究的结果证明深证综合B股指数的指数市盈率时间序列具有均值回归特性。
The life of the relay is a major index to indicate the reliability of relay. Super-path time and pick-up time are important characteristic parameters to indicate the life of relay.
继电器寿命是表征继电器可靠性的重要指标，超程时间和吸合时间是表征继电器寿命的重要特性参数。
There are evident correlation between the time coefficients of the first EOF mode of snow depth and the characteristic index of the South Asia High.
青藏高原冬、春季雪深EOF分析第一模态时间系数与南亚高压东伸指数、强度指数相关显著。
This paper analyses the composition, transfer function and stability of the control system. It also analyses the control performance index of frequency characteristic, time-domain response and steady…
本文分析了该控制系统的组成、传递函数和稳定性，还分析了该系统的频率特性、时域响应和稳态误差。
This paper analyses the composition, transfer function and stability of the control system. It also analyses the control performance index of frequency characteristic, time-domain response and steady…
本文分析了该控制系统的组成、传递函数和稳定性，还分析了该系统的频率特性、时域响应和稳态误差。
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