叙述了利用热中子透射计测石油管道内油垢厚度的原理、实验和结论。
The principle and experiments on the measurement of grease stain in petroleum pipeline using the thermal neutron gauge were reported.
文章介绍了SDC - 12型手提式多功能油管测长仪的特点、基本结构、工作原理、基本操作。
The character, basic structure, work principle, and basic operation of SDC-12 handy multifunction tubing length measurement gauge are described in this text.
针对人工测量油管长度存在测量误差大、作业效率低等问题，提出以激光测量为核心的油管智能测长方法。
A tubing length intelligent laser measuring system is developed in the light of the low measuring accuracy and efficiency.
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