hyperfine structure transition造句

例句与造句

1. Due to the accuracy of hyperfine structure transition-based atomic clocks, they are now used as the basis for the definition of the second.
2. One second is now " defined " to be " exactly " 9, 192, 631, 770 cycles of the hyperfine structure transition frequency of caesium-133 atoms.
3. It's difficult to find hyperfine structure transition in a sentence. 用hyperfine structure transition造句挺难的