1.A satisfactory theory must be able to explain why in methane the HCH angles all have the characteristic tetrahedral value.
一个完满的理论必须能够解释甲烷中为什么所有HCH角都具有四面体的特性值。
2.Owing to a set of data structures for tetrahedral mesh, high efficiencies of the improvement algorithm is guaranteed.
通过有效的数据结构设计保证网格拓扑关系的快速查询，提高算法的时间效率。
3.The vertebral body of the FEA model consisted of a solid tetrahedral core of trabecular bone surrounded by a cortical shell.
椎体的有限元模型包括了坚实的四面体核心，骨小梁周围有皮质外壳。
4.In a tetrahedral configuration, the substituted groups sre located in two perpendicular planes, the steric effect is much weaker.
而在四面体构型中，两对取代基在互为正交的两个平面中，位阻小得多。
5.It will be noted that between the two layers there exist interstices of two types: tetrahedral and octahedral.
要注意两层之间有两种类型的空隙：四面体型和八面体型。
6.This paper discussed algorithm complexity, time cost and stability of tetrahedral subpision in virtual surgery.
本文对虚拟手术中四面体模型切割的算法复杂度、实时性和稳定性进行研究。
7.The unsteady flow fields in baffled stirred vessel were simulated by unstructured tetrahedral mesh and sliding grid technique.
采用非结构化四面体单元，利用滑移网格技术模拟了搅拌设备内的非定常流场。
8.The cytokinesis of the microspore mother cells in meiosis is successive and the microspore tetrads are tetrahedral.
小孢子母细胞减数分裂中的胞质分裂为连续型，四分孢子为四面体型；
9.In addition, the FeO bond length in this tetrahedral coordinated iron silicate structure decreases during the crystallization process.
进一步的研究发现，随着晶化的完全，这种铁-硅氧结构中铁-氧配键键长在慢慢变短。
10.The microspore mother cells in meiosis is successive and the microspore tetrads are tetrahedral and bilateral symmetry.
小孢子减数分裂为连续型。四分体呈四面体型和左右对成型。