原子频率标准 atomic frequency standard ; AFS
铯束原子频率标准 Cesium atomic beam frequency standard ; cesium frequency standards
氢激射型原子频率标准 [核] hydrogen maser frequency standard
铯射束原子频率标准 cesium beam atomic frequency standard
原子束频率标准 [物] atomic beam frequency standard
铯原子射束的频率标准 cesium atomic beam frequency standard
原子标准频率 atomic frequency standard
原子进动角频率 atomic precession angular frequency ; angular frequency of atomic precession
铊原子束频率标准 thallium atomic beam frequency standard
原子进动圆频率 circular frequency of atomic pression
如果这些微波的频率恰到好处，他们将会使这些反原子产生自旋翻转。
If the frequency of these microwaves is just right, they will flip an anti-atom's spin.
化学家们早就知道，在分子中原子以特定的取决于整体分子结构的频率振动。
Chemists have long known that atoms in a molecule vibrate at a particular frequency, depending on their overall molecular structure.
这些齿可以像尺子一样用来异常精确的测量激光器、原子、天体或其它物体发出的光的频率。
The teeth can be used like a ruler to measure the light emitted by lasers, atoms, stars, or other objects with extraordinarily high precision.
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