负性散光轴角度的决定是依据视力表上之辐射状散光图表,因凹圆柱镜轴方向和其聚焦线(focal line)方向是平行的,也就是说凹圆柱镜只能移动(推后)与其轴平行方向的影像,若一病人自觉散光图表90度方向线条最黑,表示90度线条在眼内成...
基于302个网页-相关网页
结果表明采用不等宽单元技术能大大改善入射光场为高斯分布型的焦线强度分布均匀性。
The results show that the unequal width element CLA is able to improve the homogeneity along the focus line for an incident laser with both Gaussian and uniform distribution.
本文讨论了当固定条形镜面聚光器长轴沿东西向放置时，太阳时角变化所引起的焦线位置的移动。
This paper deals with a displace of focusing line position which is caused by change of solar hour angle when a long axis of FMSC is placed in east-west direction.
一个迷人的带着松软帽子的少女，深情注目着风吹麦田的地平线，伴着粉红色的梦幻柔焦。
A winsome young lass in a floppy hat, gazing soulfully to the horizon in a windblown field—soft focus, in pastels.
应用推荐