Mayer(1918)将组织归纳成4类，即上皮组织、结缔组织、肌肉组织和神经组织，称之为基本组织(fundamental tissue)。这种分类方法一直被沿用至今。
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Tissue culture, such as microspore culture and embryo technique was widely developed in rapeseed breeding and fundamental studies.
小孢子技术、体细胞原生质体融合技术等组织培养手段已广泛应用于油菜育种及基础性研究。
Objective To study the method of how to improve the quality of sonograms and increase sonograms reveal rate by comparative observation between tissue harmonic imaging(THI)and fundamental imaging (FI).
目的探讨组织谐频成像（THI）与常规基频成像（FI）的对比观察，研究THI改善声像图质量，增强图像的显现力。
Carry out a primary study of artery tissue construction and provide a fundamental basis for tissue engineered artery and its clinical application.
进行组织工程动脉组织构建的初步实验，为最终获得组织工程动脉移植体并应用到临床奠定实验基础。
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