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- half field angle 半视界角
- There may be VEP naso-temporal asymmetries of half field stimulation in the esotropic eyes of accommodative esotropic amblyopia. 调节性内斜视弱视患儿斜视眼半视野刺激，其VEP存在着鼻、颞侧非对称现象。
- This star is at the zero field angle and, as in our example above, we are enjoying a diffraction limited view of this star. 这颗星的角度就是0度，我们当然很乐意进行这样的单星测试。
- When frequency is 301p/mm, the modulation transfer function(MTF) is near diffractive limit under 0.5 field angle, the modulation transfer function (MTF) is near 0.7 in edge field. 频率为301p/mm时系统的光学传递函数在0.;5°视场角以下接近衍射极限;边视场角的传递函数系数接近0
- Method: Firstly, we recorded visual evoked magnetic field of 5 anisometropic amblyopic children and 4 normal children by whole and half field pattern reversal stimulation. 方法:对4例健康儿童及5例单眼屈光参差性弱视儿童分别进行双眼全视野、左右单眼全视野、左右单眼半侧视野黑白棋盘格翻转刺激的磁场诱发反应。
- In this paper, the research on vignetting is done and a formula for vignetting about field angle、entrance window, entrance pupil and the distance between them is deduced. 文中对渐晕做了一些研究，并推导出一个渐晕关于视场角、入瞳、入射窗以及两者之间距离的解析式。
- Add first half field and add at present half time are 15 minutes perspectively, while add an end after will not take a rest, will carry on directly add at present half time of game. 加时上半场及加时下半场各为十五分钟，在加时上半场完结后不会休息，会直接进行加时下半场的赛事。
- The method has not the effect of alignment error as the conventional ways to fabricate binary optics elements (BOB), and can avoid the defects with large field angle imaging in gray-scale mask technology. 该方法不存在传统的对准套刻法的对准误差影响，也避免了灰度掩模技术对大视场成像要求高的缺点。
- Methods Multiple channel VEP elicited by monocular full field and half field stimulation were recorded in 32 children with accommodative esotropic amblyopia and 24 normal controls. 方法使用多导PRVEP检测系统，对调节性内斜视弱视患儿32例，正常对照组24例进行全视野及鼻、颞侧视野刺激。
- As for axial refractive index distribution, the error varies directly with viewing field angle and increases with the range of refractive index, but does not vary with object distance. 对于轴向折射率分布，其偏差与视场角成线性关系，随折射率变化幅度的增大而增大，但不随物距变化；
- I apportioned half the property to each of them. 我把财产的一半分配给他们各人。
- As the field angles are different between direction of flight and its perpendicularity,the baffle is made non-symmetrical,so the ratio of block may below 1/3.3. 由于飞行方向与垂直方向视角不同;主镜上遮光筒和次镜上遮光罩的形状可以设计成非轴对称形状;并可使系统线遮栏比降为1/3.;3;
- She reckoned she had cut her cost by half. 她估计她减少了一半的费用。
- The field artillery pounded away at the for tress. 野战炮兵连续炮击那座要塞。
- I worried half the night and have a fitful sleep. 我半个晚上都一直在担心，故而时醒时睡。
- He can fling off a poem in half an hour. 他可以在半小时之内草就一首诗。
- It took him half an hour to finish the work. 他花了半个小时做完这项工作。
- I usually go to bed at half past ten. 我通常十点半睡觉。
- The crowd cheered as the teams entered the field. 球队入场时观众们为之欢呼。
- COMPARING TWO TYPES FIELD ANGLE OF GRAN TAYLOR PRISMS 格兰·泰勒棱镜两类视场角的比较研究
