英语词汇gum line是什么意思，gum line的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-觉斋网

单词	gum line
释义	DEFINITIVE EXAMPLES 权威例句〔crown〕The part of a tooth that is covered by enamel and projects beyond the gum line.齿冠：露在牙床外面的、被釉质覆盖的那部分牙齿美国传统
随便看	minimum phase shift network minimum photographic distance minimum piece work standard minimum plate height minimum polynomial minimum power consumption minimum premium minimum prescribed penalty minimum price minimum price minimum price&import prohibition minimum principle minimum problem minimum profit minimum property minimum proteins minimum pulse minimum pulse duration minimum punishment minimum quadrat number minimum quantity minimum quantity of stores minimum quotations minimum radius of curve minimum rate

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