Human tooth development is a consecutive process, which includes bud stage, cap stage, bell stage and tooth root development.
人类牙齿发育是一个连续的过程，经历了蕾状期、帽状期、钟状期和牙根发育期。
Human tooth development is a consecutive process, which includes bud stage, cap stage, bell stage and tooth root development.
人类牙齿的发育，经历蕾状期、帽状期、钟状期、牙根发育和牙齿萌出期。
Human tooth development is a reciprocal and consecutive process, which includes bud, cap, bell stages, tooth root development and tooth eruption.
人类牙齿的发育，经历蕾状期、帽状期、钟状期、牙根发育和牙齿萌出期。
Human tooth development is a reciprocal and consecutive process, which includes bud, cap, bell stages, tooth root development and tooth eruption.
人类牙齿发育是一个连续的过程，经历了蕾状期、帽状期、钟状期和牙根发育期。
A lot of research work have been done to the molecular biological mechanism about mouse's tooth development, but there is no report on human tooth germ.
对小白鼠牙齿发育的分子生物学机制已经进行了大量的基础性研究工作，但是对人类牙齿发育的分子生物学机制目前还未有报道。
A lot of research work have been done to the molecular biological mechanism about mouse's tooth development, but there is no report on human tooth germ.
对小白鼠牙齿发育的分子生物学机制已经进行了大量的基础性研究工作，但是对人类牙齿发育的分子生物学机制目前还未有报道。
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