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彩色宝石鉴定师证书
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彩色宝石鉴定师证书
彩色宝石鉴定师证书
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C.S.G.
)钻石学家 (DIAMOND GRADER, D.G.) 授予证书: 钻石学家 证书 (D.G.) 需完成以下两门课 …
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acoustical reproduction
acoustical resistance
acoustical resistance measurement
acoustical resonance
acoustical resonator
acoustical scintillation
acoustical screen
acoustical sensation
acoustical shadow
acoustical shock
acoustical signal
acoustical signaling
acoustical signals
acoustical signature
Acoustical Society of America
acoustical sound enclosure
acoustical sounding
acoustical spectrograph
acoustical spectroscopy
acoustical speech power
acoustical stiffness
acoustical technology
acoustical telegraphy
acoustical telephony
acoustical test
英汉双解词典包含2704715条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。
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更新时间:2025/8/3 16:19:57