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labor certification
释义
labor certification
(美国劳工部签发的)劳工证书(证明拟移居美国的外国人能提供美国所需技能)
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optical card
optical centre
optical character reader
optical measurement
optical memories
optical memory
optical memory card
optical meteor
optical microscope
optical microscopes
optical microscopy
optical mixtures
optical mode
optical model
optical modulator
optical monochromator
optical null method
optical parallax
optical parametric amplification
optical parametric oscillator
optical parametric oscillators
optical path
optical phenomena
optical phonon
optical printer
英语短语词组词典共收录525608条英汉双解短语词组词条,基本涵盖了全部常用短语词组的翻译及用法,是英语学习的有利工具。
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更新时间:2025/8/2 3:25:29