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单词
lumen
释义
lumen
Symbol lm. The SI unit of luminous flux equal to the flux emitted by a uniform point source of 1 candela in a solid angle of 1 steradian
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Schmidt camera
Schottky defect
Schottky effect
Schrieffer, John
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Schwarzschild radius
Schwinger effect
scintillation camera
scintillation counter
sclerometer
scotopic vision
screen grid
screw
seaborgium
search coil
Searle's bar
second
secondary cell
secondary colour
secondary emission
secondary winding
secular magnetic variation
sedimentation
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更新时间:2025/6/23 4:32:43