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单词
light valve
释义
WordReference Random House Unabridged Dictionary of American English © 2024
light
′
valve′,
[
Elect.
]
Electricity
a light-transmitting device having transmissions that vary in accordance with an electric input, as voltage, current, or an electron beam, used chiefly for recording sound on motion-picture film.
1925–30
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tree planters state
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tref
treflé
trefoil
trefoil arch
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trehala
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更新时间:2025/7/31 9:23:52