The flow to open design is adopted, and the medium flow direction tends to the opening direction of the valve with good controllability of small opening and low flow characteristic distortion.
采用流开式设计，介质趋向于阀门开启的方向，小开度可控性好，流量特性畸变小。
The Harmonious Distortion characteristic of telemetry seismic data acquisition systems is an important performance index, which affects the quality of seismic acquisition data directly.
谐波畸变特性是遥测地震数据采集系统的一项重要性能指标，直接影响地震数据采集的质量。
The group delay, which characterizes the linear distortion of the system and network, is an important transmission characteristic.
群时延是系统和网络的一项重要传输特性，它表征系统和网络的线性失真。
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