Psychological profiling and training of the astronauts, plus constant communication with Earth, would reduce debilitating mental strains, the two scientists said.
两位科学家表示，对宇航员的心理分析和训练，再加上能持续与地球通讯，将降低他们的精神紧张程度。
Then he sent Jenniskens figures detailing the address—latitude, longitude and altitude—of the asteroid every six miles en route to Earth, plus its speed and angle of approach.
然后他将坠落地址的数据发给杰尼斯肯斯，其中包括小行星飞临地球每隔六英里的经度，纬度，海拔高度，还有速度和飞临地球的角度。
Kepler's scientists estimate that the telescope should find at least 50 Earth-sized planets in one-year orbits, plus many bigger planets.
开普勒号项目组的科学家预言，在这台望远镜的航程中，将能够找到至少50颗地球大小的行星，其轨道的公转周期大致都是一年，还有许多更大的行星。
It is not as though the rare-earth elements-scandium, yttrium and lanthanum plus the 14 so-called lanthanides-are all that rare.
并非所有稀土元素都像钪、钇、镧加上14所谓的镧系元素那样稀少。
O 'plus a: The red earth of Tara Tara! Tara! Tara!
奥与阿：塔拉的红土！塔拉！塔拉！
The 600-plus-kilogram satellite will circle the Earth once every 90 minutes after it enters a sun-synchronous orbit at an altitude of 500 kilometers.
墨子号质量在600千克以上，进入距地面高度500公里的太阳同步轨道后，每90分钟环绕地球一圈。
The 600-plus-kilogram satellite will circle the Earth once every 90 minutes after it enters a sun-synchronous orbit at an altitude of 500 kilometers.
墨子号质量在600千克以上，进入距地面高度500公里的太阳同步轨道后，每90分钟环绕地球一圈。
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