侧卫片见下肺野可疑卵圆形不透光区。
Chest lateral shows suspicious ovoid opacity in lower lung zone.
因此中国转向为中国版侧卫歼十一提供AL- 31f的俄罗斯。
China then turned to Russia who initially supplied the AL-31F, which are used in China's J-11 Flankers.
北京和莫斯科在1991年首次同意侧卫的销售，许可生产合同签订于1996年。
Beijing and Moscow first agreed on the Flanker sale in 1991 with a license production contract signed in 1996.
当然最有名的中国飞机，在J - 10，还有助于大大缩小差距，因为有大量的侧卫变种派出。
Of course the most famous Chinese jet, the J-10, has also contributed to the drastically narrowing the gap, as have the large number of Flanker variants fielded.
解说：在这张来自卡西尼飞行器的戏剧性的图片中，土星的卫星之一的土卫二在阳光的照射下显出一道月牙，阴森地逼近了土星黑夜侧的上方。
Explanation: A sunlit crescent of Saturn's moon Enceladus looms above the night side of Saturn in this dramatic image from the Cassini spacecraft.
这道光环也可以解开另一个卫星“土卫八” （Iapetus）的迷团。 “土卫八”一侧发光，另一侧很暗。
The ring may answer the riddle of another moon, Iapetus, which has a bright side and a very dark side.
然而，木星最大的卫星木卫三将会出现在木卫一和欧罗巴的同一侧，虽然它距离木星近轨有三倍距离。
However, Jupiter's largest moon Ganymede will appear on the same side of Jupiter as Io and Europa, though at some 3 times farther out from the Jovian disk.
然而，木星最大的卫星木卫三将会出现在木卫一和欧罗巴的同一侧，虽然它距离木星近轨有三倍距离。
However, Jupiter's largest moon Ganymede will appear on the same side of Jupiter as Io and Europa, though at some 3 times farther out from the Jovian disk.
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