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单词
melanotekite
释义
melanotekite
[´mel·ǝ·nō`tek´īt]
MINERALOGY
Pb
2
Fe
2
Si
2
O
9
A black or dark-gray mineral composed of lead iron silicate.
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chrominance carrier
chrominance-carrier reference
chrominance channel
chrominance demodulator
chrominance frequency
chrominance gain control
chrominance modulator
chrominance primary
chrominance signal
chrominance subcarrier
chrominance-subcarrier demodulator
chrominance-subcarrier modulator
chrominance-subcarrier oscillator
chrominance-subcarrier reference
chrominance video signal
chromite
chromium
chromium-51
chromium carbide
chromium chloride
chromium coating
chromium dioxide
chromium dioxide tape
chromium-gold metallizing
chromium-iron alloy
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更新时间:2026/2/22 11:57:29