All factors which effect the processing efficiency of point-scanning and line-scanning system is analyzed, and processing efficiency of the kinds of systems are compared theoretically.

对影响点扫描和变长线扫描成型系统加工效率的各种因素进行了分析，并从理论上对两种系统的加工效率进行了比较。

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The math model about synchronism controlling between line scanning rate of CCD and object moving speed in the TDI CCD intersection measuring system is established.

建立了TDI CCD交汇测量系统中CCD行扫描速率和目标运动速率同步控制的数学模型。

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Based on building the mathematical model of scanning process of Length alterable Line scanning Laser rapid prototyping system, a zoning algorithm for planar polygon is put forward.

在建立激光变长线快速成型系统加工过程的数学模型的基础上，提出了一种可对任意平面图形进行分区处理的分区算法。

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