变 【中文名称】：特性畸变 【英文名称】：characteristic distortion 【定义1】： 在特定特性的传输通路中，因信号传输而产生瞬态效应所引起的时间畸变。 【来源】： GB/T 14733.5-1993（术语标准）； 【定义2
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对于调节阀，由于管道阻力等因素的存在，阀门总是存在流量特性畸变。
Thanks to there always exist the factors such as the pipeline resistance and so on, the flux characteristic of valve will become aberrance.
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 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.
运用严格的光栅衍射耦合波理论分析光栅的衍射特性，发现该方案不会引入相位畸变。
The rigorous coupled-wave theory is used to analyze the characteristics of grating diffraction, and the results indicate that this method produces no phase distortion.
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