Comparison: Messenger is now producing much sharper views of polar regions than during the flybys.
信使号的这次探测与以往的探测相比，提供了关于极地地区的更清晰的图片。
Messenger has already been able to return a partial map of the planet's crater-filled surface after just a handful of flybys.
信使号在近距离探测一段时间后就能发回水星那凹凸不平表面的局部地图。
Messenger was launched more than six years ago, travelling through the inner solar system and embarking on flybys of Earth, Venus and Mercury.
信使号于六年前发射，穿过太阳系内部，飞越地球、金星和水星。
The spacecraft began its journey more than six years ago, traveling through the inner solar system and embarking on flybys of Earth, Venus and Mercury.
该航天器与六年前启程航向内太阳系，并对地球、金星和水星从事飞近探测。
That it was like the Earth's was confirmed in 2008 on one of Messenger's flybys.
水星磁场同地球的磁场一样，这在2008年信使号的一次近水星飞行中被证实了。
Cassini has many more flybys of Titan that might help us sort out just what is happening at the surface.
卡西尼还将多次飞越土卫六，这将帮助我们了解其表面到底发生了什么。
Juno still has 36 more flybys of Jupiter, giving scientists more time to explore the wonders and mysteries of the giant planet.
朱诺号还会在木星进行至少36次近距离飞越，这给了科学家们更多的时间去探索这颗巨星上一切的奇景和秘境。
Mariner 10 captured just 45 percent of the cratered surface before moving on, and the three previous MESSENGER flybys didn't quite fill in the whole picture.
水手10号只拍到了水星布满陨石坑的表面45%的图片，前三次信使号飞过水星也没能提供所有图片。
Mariner 10 managed to map about 45% of Mercury's surface as it sped past, but Messenger's three flybys have filled in the gaps, and there is now a virtually complete map of the place.
水手10号在其快速掠过时设法绘制了水星表面大约45％的地图，不过信使号的三次近水星飞行已经填补了空白，现在有了几乎很完整的水星表面地图。
Without its six flybys-which used the gravitational fields of the planets involved to counter that effect-messenger could not have slowed sufficiently to allow it to drop into its intended orbit.
如果没有它的六次近水星飞行(利用能抵消这种影响的行星引力场)，信使号就不可能放慢到足以使它落入到预定的轨道。
Without its six flybys-which used the gravitational fields of the planets involved to counter that effect-messenger could not have slowed sufficiently to allow it to drop into its intended orbit.
如果没有它的六次近水星飞行(利用能抵消这种影响的行星引力场)，信使号就不可能放慢到足以使它落入到预定的轨道。
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