大陆上的现有三角测量系统还须平差。

Existing continental triangulation systems also still need to be adjusted.

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在无衍射光束三角测量研究基础上，对无衍射结构光三角测量系统进行了理论研究。

A theoretical research on triangle measurement system with NDSL is made, which is based on triangle measurement with non-diffraction beam.

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该文较系统地分析了不同结构、不同类型的激光三角测量系统，并比较了其优缺点。

Laser triangulation systems with different structures and different sorts are introduced respectively and their characteristics are compared.

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