英语单词“HB”的翻译、意思、音标-英汉词典

单词	HB
释义	[/ˏeɪtʃ ˈbiː; ˏetʃ ˋbi/] abbr 缩写 = (of lead used in pencils) hard black (ie medium hard) （指铅笔芯）硬黑（即硬度适中）: an HB pencil 一支HB的铅笔. Cf 参看 B, H.
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