Moral perhaps is a piece of paper thickness, maybe a little patience wait, perhaps is a kind regards, more perhaps just a smile.
道德也许是一张纸的厚度，也许是一点耐心的等待，也许是一句善良的问候，更也许只是一个微笑。
The principle of paper thickness on-line measurement using displacement differential method based on laser displacement sensor and electric eddy current displacement sensor is introduced.
介绍了基于激光位移传感器与电涡流位移传感器的位移差动法在线检测纸坯厚度的原理及测量系统的软硬件设计。
The principle of paper thickness on-line measurement using displacement differential method based on laser displacement sensor and electric eddy current displacement sensor is introduced.
介绍了基于激光位移传感器与电涡流位移传感器的位移差动法在线检测纸坯厚度的原理及测量系统的软硬件设计。
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