点矩阵式打印机 dot-matrix printer ; matrix printer
点矩阵式激光喷码 Dot matrix laser coding
点式矩阵
Dot matrix
以上为机器翻译结果，长、整句建议使用 人工翻译 。
以矩阵分析理论为基础，讨论了影响测量方程求解的因素，并提出了方法中重要部件手握式靶标上特征点分布的基本约束条件。
Based on the matrix analysis, the influential factors on the model solving are discussed and the restriction conditions to the distribution of the known points on the probe are proposed.
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