But there are still some problems in existing calculation method.
但从现有的测算方法看还存在着一定的问题。
Note that on new hardware, the method of calculating that value changes; and on existing hardware, the calculation remains unchanged.
请注意，对于新的硬件，计算方法有所改变，而对于现有的硬件，计算方法保存不变。
To against the problems existing in ultrasonic level detection, the measuring principle, calculation formula and applicable features of the method of structural light of laser is introduced.
针对超声液面检测技术中存在的问题介绍了激光结构光法的测量原理、计算公式和应用特点。
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