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chalk test
meaning in English
白垩试验
白垩涂层试验
粉末渗透探伤法
渗透探伤试验
垩粉水密试验
Related Words
chalked
magnesian chalk
chalking appearance
black chalk
lower chalk
lithographic chalk
chalk flint
chalk rating
glauconite chalk
clone chalk
chalk stripe gabardine
chalk talk
chalk transfer paper
chalk tray
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