1.  dead zone
2.  dead band

• 1. 不灵敏区: dead band
• 2. 主输出动作不灵敏区: Main output action insensitive zone
• 3. 调速器不灵敏区: governor deadband

更多释义

• 1.指出在采用液压舵机的情况下，伺服阀的不灵敏区是出现极限环现象的一个主要原因。
  In the case of hydraulic actuator the insensitive area of servovalve is the main cause for the phenomena "limit cycle".
  dict.yoduao.com
• 2.同时，在不灵敏频带内(如图象边缘区)引入一定噪声以达到整个恢复图象的噪声平滑。
  Meanwhile, some noises are added into frequency bands where it is less visible in order to achieve noise smooth of overall reconstructing image.
  dict.yoduao.com

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