This paper describes the principle, derivation of the engineering formula, software functions and characteristics of a microcomputer controlled dynamic length measuring device for red-hot steel plate.
本文叙述了微机控制的红热钢板动态测长仪的原理、工程公式的导出、软件功能及其特点。
The deformation or the highness after shooting of the plastic pressure-measuring elements is measured by the high precision LVDT displacement sensors in length testing device.
位移测试装置利用高精度差动变压器位移传感器完成塑性测压器件的变形量（或压后高）的测量；
This paper reports a research upon the principles of the electronic method for measuring the root canal length, the design of the electronic device and its efficiency.
本文报导了牙齿根管长度电测仪的原理研究、设计思想和临床效果。
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