The technology is remote distance and no osculant measurement , and the measure instrument can be real time control by pc . the system adopts an optical system equipped pritchard hole reflector . it can provide efficiently optical channel , and it can aim at the distant object and measure brightness and color precise 本系统采用了装备有带孔反射镜的望远光学系统，能够对远处的测试目标进行亮度与颜色的精确瞄准测量，同时可方便的改变视场角的大小。
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The phase - shifting interference is a osculant and high precision technology base on the wavelength . because of the different size of object being measured leading to different size of interference wave which brings on asymmetry of the interference wave ineluctably we adopt the zoom lens to improve the measurement precision . considering the interferometer ’ s sensitivity to the vibration the interferometer is often used in the lab which restricts it being used widely 移相干涉术是以光波波长为单位的非接触式高精度测量技术,为了使大小各异的被测元件产生的干涉条纹尺寸大小一致而引入了变焦镜头,从而不可避免地导致干涉条纹亮暗不均匀和照度改变的问题,最终影响测量精度。
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According to the investigation to the process of motor skill obtained and the investigation of motor skill " difficulty degree " , motor skill is partitioned as able and unable motor skill with obvious difference 、 osculant motor skill and able and unable motor skill with blurry difference , which establish the academic base to further research the process of motor learning and choose rational teaching methods 以体育教学过程中运动技能的习得过程为依据，通过对运动技能“会能度”的调查，重新将运动技能划分为“会与不会有明显区别的运动技能” 、 “中间型的运动技能”和“会与不会没有明显区别的运动技能”三种，这个分类的思想和视角会为进一步认识运动技能的学习过程和根据运动特点优选教法奠定新的理论基础。
