介绍了系统的测量原理、方法、系统基本构成、基本技术指标要求和所采用的技术方案，给出该系统与激光雷达进行对比试验的结果。
The basic principle, method and technology scheme are discussed, and then the comparison experiments between the system and a lidar system are carried out.
介绍了胶合砂的基本配方、主要技术指标及防砂机理。
Basic formulation, main technique index and sand control mechanism for agglutination sand are introduced.
介绍了该仪器的工作原理，基本结构，主要技术指标。
The working principle, basic structure and main technical target of the instrument is introduced.
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