极环星系是种稀有的星系类型，它们有着几乎和银盘平面垂直，呈环形公转的大量的恒星、气体和星尘。
A rare galaxy type, polar ring galaxies have a substantial population of stars, gas, and dust orbiting in rings nearly perpendicular to the plane of the galactic disk.
她必定方才分开美发店，因为利用火鸡盘来挡雨是一种很极真个作法。
She must have just left the hairdressers or something, because using a foil Turkey dish as a rain-shield is pretty extreme in our books.
研究表明，向日葵列当寄生严重度与向日葵的花盘直径、千粒重、盘粒重均呈现极显著的负相关；
The results showed that: 1) there was a significant negative correlation between parasitic severity of O. cumana W. and diameter of flower dish, weight per thousand seeeds or weight per dish;
研究表明，向日葵列当寄生严重度与向日葵的花盘直径、千粒重、盘粒重均呈现极显著的负相关；
The results showed that: 1) there was a significant negative correlation between parasitic severity of O. cumana W. and diameter of flower dish, weight per thousand seeeds or weight per dish;
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