The two level atom′s decoherence is suppressed when the time evolution properties of an external driving field satisfy certain conditions.
当外加驱动场的演化规律满足一定的条件时，可使两能级原子的消相干被消除。
It will level the playing field for U. s. auto companies and workers.
它将为美国汽车公司和员工打造出公平的竞争环境。
The agreement does help level the playing field among auto makers, likely helping the U. S. auto makers better compete globally.
这项协议确实有助于在汽车制造商中创造一个相对公平的竞争环境，有利于美国汽车制造商参与全球竞争。
The results showed that the traveling magnetic field can generate the magnetic force in the s EMS region, which makes molten steel whirl in level section and flow unevenly in verticals...
结果表明，外加水平波磁场可以在搅拌区域内产生电磁力，使钢液在水平方向形成旋转流动，而在垂直方向形成不均匀流动。
The results showed that the traveling magnetic field can generate the magnetic force in the s EMS region, which makes molten steel whirl in level section and flow unevenly in verticals...
结果表明，外加水平波磁场可以在搅拌区域内产生电磁力，使钢液在水平方向形成旋转流动，而在垂直方向形成不均匀流动。
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