骨组织外部结构的不规则性及内部结构的特殊性，使常见成形手段难以满足人工活性骨的制造要求。
The irregularity of the outer structure of bone and the particularity of the bone tissue have resulted in the impossibility for the common forming methods in manufacturing the artificial bone.
第三部分详细分析了EJB组件体系的内部结构、编写规则、调用流程和实现方法，以及EJB容器工具与服务。
Section 3 analyzes the internal structure of EJB component architecture and its calling process, the EJB container tools and services are also introduced.
形态学是语法学的一个分支，研究单词的内部结构和构词规则。形态学有两个分支：曲折形态学和词汇或派生形态学。
Morphology is the branch of grammar that studies the internal structure of words, and the rules by which words are formed.
形态学是语法学的一个分支，研究单词的内部结构和构词规则。形态学有两个分支：曲折形态学和词汇或派生形态学。
Morphology is the branch of grammar that studies the internal structure of words, and the rules by which words are formed.
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