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hyperfine levels造句

例句與造句

  1. The second is by definition the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.
  2. The effect of Lyman-alpha photons on the hyperfine levels depends upon the relative intensities of the red and blue wings of the Lyman-alpha line, reflecting the very small difference in energy of the hyperfine states relative to the Lyman-alpha transition.
  3. The microwaves of the hydrogen line come from the atomic transition of an electron between the two hyperfine levels of the hydrogen quanta that are emitted by this transition between two different energy levels is given by the Planck Einstein relation " h? " } }.
  4. The standard definition of a second ( " the duration of 9, 192, 631, 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom . " ) should be good enough for explaining time.
  5. Astronomers from the US Naval Observatory ( USNO ) and the National Physical Laboratory determined a relationship between the frequency of radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom and the estimated rate of rotation of the earth in 1900.
  6. It's difficult to find hyperfine levels in a sentence. 用hyperfine levels造句挺難的
  7. In 1967 the Thirteenth General Conference on Weights and Measures ( CGPM ) defined the second of atomic time in the International System of Units as the duration of periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom.
  8. We've already done that with the definition of a second ( " " the duration of 9, 192, 631, 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom " " ).
  9. In other words, the definition of " second " used by the computer changes for some short period of time so that it no longer equals " the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom ."
  10. Eventually, this definition too was found to be inadequate for precise time measurements, so in 1967, the SI second was again redefined as 9, 192, 631, 770 periods of the radiation emitted by a caesium-133 atom in the transition between the two hyperfine levels of its ground state.
  11. The microwaves of the hydrogen line come from the atomic transition between the two hyperfine levels of the hydrogen 1s ground state with an energy difference of 5.87433 礶V . [ 1 ] The frequency of the quanta that are emitted by this transition between two different energy levels is given by Planck's equation.
  12. This is mostly due to our difficulty in measuring G . By comparison, the best atomic clocks have a precision ~ 5 at measuring a second as defined to be " the duration of 9, 192, 631, 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom ".
  13. A proper second is 9, 192, 631, 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of a caesium 133 atom that's moving with you ( see second ), but a UTC second might be slightly more or fewer periods than that, depending on where you are and how fast you're going.
  14. :Note that a light-year is the distance which light travels in a vacuum in one Julian year ( astronomy ) which is 31, 557, 600 SI seconds ( with each second defined as " the duration of 9, 192, 631, 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom " ).
  15. In other words, whether or not you choose to add leap seconds, your clock is still trying to follow a second that is " the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom at rest at a temperature of 0 K . " It's not trying to follow a second who's precise length varies in a way that the clock itself can't even know unless it's a very fancy clock ( but in which case it's even more likely to be following the definition of a second that aims for consistency ).

相鄰詞匯

  1. "hyperfine coupling"造句
  2. "hyperfine coupling constant"造句
  3. "hyperfine field"造句
  4. "hyperfine interaction"造句
  5. "hyperfine level"造句
  6. "hyperfine line"造句
  7. "hyperfine parameter"造句
  8. "hyperfine spectra"造句
  9. "hyperfine spectrum"造句
  10. "hyperfine splitting"造句
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