伦敦樱草山,路人驻足观看赞颂平克·弗洛伊德的《月之暗面》为影集封面的天空艺术。
Passers-by watch as Sky Arts pays tribute to Pink Floyd's Dark Side Of The Moon album cover, on Primrose Hill, London
三个星期以来我第一次独自开车从温得赫克驶往纳米布沙漠。蔚蓝的天空笼罩着大地,无树草原在蓝天下产生一种地面又平又宽的假象。
For the first time in three weeks I am alone, driving from Windhoek toward the Namib Desert beneath a ubiquitous blue sky, its presence above the savannah creating the illusion of a flat, wide Earth.
仰望天空,我只是地平线上一座孤独平微的小屋。
Looking at the sky, I am just like a lonely little house slightly stand on the horizon.
误差小于1%。除B滤光片之外,在一定范围内圆顶平场和天空平场之间最大差异均小于1%。
Except the B filter, all the sky flats and dome flats show no significant differences (at the 1% level).
误差小于1%。除B滤光片之外,在一定范围内圆顶平场和天空平场之间最大差异均小于1%。
Except the B filter, all the sky flats and dome flats show no significant differences (at the 1% level).
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