此信号表明，该卫星运转良好且准备好开始轨道演习和操作测试。

The signals indicate that the spacecraft bus is functioning normally and ready to begin orbital maneuvers and operational testing.

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第一颗人造卫星，苏联制的“史普尼克一号”从地球上发射开始轨道运行，为地球的太空世纪开启了曙光。

First artificial satellite launched fr Earth. Sputnik I is orbited by the Soviet Union, arking the dawn of Earth's Space Age.

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当它失重的时候，它开始将它的轨道向地球倾斜：这是危险的，比其他任何东西都危险。

As it lost weight, it started to incline its orbit toward the earth: it was dangerous, above and beyond anything else.

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So, if we're talking about five different orbitals and we're talking about a ground state atom, we know that we just need to start at the bottom and work our way out up.

因此，如果我们要讨论的是,五个不同的轨道且是属于一个基态原子的话，我们知道，我们只需要从最低的轨道,开始一个一个往上找。

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We'd started on Monday talking about radial probability distributions for the s orbitals.

我们从星期一开始讨论了,ｓ轨道的径向概率分布。

麻省理工公开课 - 化学原理课程节选

But let's go ahead and start our discussion in terms of molecular orbital theory.

让我们从,分子轨道理论开始讲起。

麻省理工公开课 - 化学原理课程节选