The rings around Uranus and Neptune were found in much the same manner back in 1977 and 1984.
另一方面,像天王星和海王星这样较小的行星具有较高的金属度,比太阳高一百倍。
Smaller planets like Uranus and Neptune, on the other hand, have higher metallicities, about a hundred times greater than the Sun.
天王星和海王星周围的环以同样的方式在1977年和1984年被发现。
The rings around Uranus and Neptune were found in the same way, in 1977 and 1984.
例如,天王星和海王星都是通过基于牛顿模型的预测而被发现的。
Both Uranus and Neptune, for example, were discovered through predictions based on Newton's model.
根据较早期的理论,只有天王星和海王星才被认为是可以产生钻石的行星。
Earlier theories included only Uranus and Neptune as suspected diamond producers.
天王星和海王星挤出来的晶体可以使玛丽莲·梦露黯然失色:研究人员认为,他们可以达到数百万克拉的重量。
The stones Uranus and Neptune squeeze out can make Marilyn Monroe swoon, though: the researchers believe they could reach millions of carats in weight.
在可见的未来,旅行者2号将会是唯一探访天王星和海王星的宇宙飞船。
For the foreseeable future Voyager 2will remain the only spacecraft to visit Uranus and Neptune.
最初发现其他行星的古代天文学家甚至没有看到天王星和海王星。
The ancient astronomers that originally found theother planets didn't even see Uranus and Neptune.
这两个探测器都访问了木星和土星,但是旅行者2被发送的轨迹看到它拉过天王星和海王星。
Both probes visited Jupiter and Saturn, butVoyager 2 was sent on a trajectory that saw it zip past Uranus and Neptune.
自发射以来,旅行者2号遇到了几颗行星,其中包括木星,土星,天王星和海王星。
Since its launch, Voyager 2 has met several planets, including Jupiter,Saturn, Uranus and Neptune.
自发射以来,旅行者2号遇到了几颗行星,其中包括木星,土星,天王星和海王星。
Since its launch, the Voyager 2 has encountered several planets, among them Jupiter,Saturn, Uranus and Neptune.
在太阳系更远的地方,科学家们长久以来一直致力于探索天王星和海王星。
Farther out in the solar system,scientists have long had their eyes set on exploring Uranus and Neptune.
谢泼德也研究了其他巨行星,并没有找到任何围绕天王星和海王星的新卫星。
Sheppard took a look at the other giant planets, too,and didn't find any new moons orbiting Uranus and Neptune.
在我们的太阳系内,行星木星,土星,天王星和海王星夹在两个尘埃带之间。
Within our solar system, the planets Jupiter, Saturn, Uranus and Neptune are sandwiched between the two dust belts.
土星不是唯一一个有光环、木星、天王星和海王星也拥有美丽光环的行星。
Saturn isn't the only planet that has rings, Jupiter, Uranus, and Neptune also possess beautiful rings.
天王星和海王星的质量分别为地球的15倍和17倍。
Neptune and Uranus are 17 and 15 times the mass of Earth, respectively.
对于天王星和海王星来说,[磁场]偏离中心。
For both Uranus and Neptune,[the magnetic field is] offset from the center.
其他计算机模拟计算研究认为,这颗行星可能是一颗遥远的冰冻巨行星,类似天王星和海王星。
Other computer simulations assume that Planet Ninewas a distant ice giant similar to Neptune and Uranus.
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