In flying height measuring method utilizing light intensity interference principle, the position control of micro flying head has effect on measuring error.
基于强度干涉原理的飞高检测方案中，微型飞行头位姿控制是影响测量误差的一项关键因素。
Methods To do quality control experiments to simulate the process of 3D-CRT by means of Topsland system, radiation treatment -planning system, laser light, bow form ruler, head model.
方法采用拓能系统的固定装置、计划系统、激光灯、弓形尺、头部模型（简称头模）模拟3DCRT的实施过程进行质量控制分组实验。
Methods To do quality control experiments to simulate the process of 3D-CRT by means of Topsland system, radiation treatment -planning system, laser light, bow form ruler, head model.
方法采用拓能系统的固定装置、计划系统、激光灯、弓形尺、头部模型（简称头模）模拟3DCRT的实施过程进行质量控制分组实验。
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