In contrast to recent quiet times, our Sun is moving toward Solar Maximum, and for years will likely appear much more active.
比较于目前的平静时期，太阳正走向峰年，会有几年看上去特别活跃。
2
This paper investigates the approach to estimate the maximum detection range of an infrared point_target against sky background based on the minimum resolved contrast(MRC)criteria.
基于最小分辨对比度准则，研究了天空背景下红外点目标的最大探测距离估计方法。
3
Either has a maximum 1280x1024 resolution with a 5ms pixel response time, 1,000:1 contrast ratios, 250cd/m2 brightness and VGA only for input.