They used two atomic clocks synchronized them and placed one on a plane while the other stayed in the same location on Earth.
他们使用两个原子钟，将时间调成一致。其中一个被放在飞机上，而另一个则置于地球上的原来地方。
2
They used two atomic clocks, synchronized them, and placed one on a plane, while the other stayed in the same location on Earth.
他们使用两个原子钟，将时间调成一致。其中一个被放在飞机上，而另一个则置于地球上的原来地方。
3
The structural stabilities and electronic structures of W atomic chains are studied by employing first-principles plane wave pseudopotential method based on the density functional theory.