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spectrum emission
例句
原声例句
PBS趣味科普
This is called an emission spectrum.
这叫做发射光谱。
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raw waste water
raw wastewater
raw water
raw weight
raw white
raw wool
raw wools
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raw wounds
ray
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ray burst
Ray, C.
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ray, cosmic
ray cosmic
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ray diagram
rayed
ray film
ray filter
Ray,Gamma
ray gun
ray guns
raying
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更新时间:2026/8/19 19:24:03