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- desmic tetrahedrons 连锁四面体
- These silicate tetrahedrons join into chains. 这些硅酸盐四面体缠结成链状。
- The Rubik's is a toy in the shape of a tetrahedron. 魔方是个四面体的玩具。
- The internal structure of silica has a pyramid(tetrahedron) unit. 硅的内部结构是一个四面体。
- Productivity system is a dynamic "tetrahedron" in an abstract term. 生产力系统抽象地看是一个处于动态的“四面体”;
- This is the top view of an oxygen-silicon tetrahedron. 这是一个硅氧四面体的俯视图。
- The microspores in tetrad stage showed tetrahedron structure. 小孢子四分体为四面体型。
- It's my illusion or?Why do I feel it's octahedron but not tetrahedron? 是我错觉还是什么?我怎么感觉这剑条是个八面的而非四面的?
- The pattern of microspores in the tetrad period is of tetrahedron type. 小孢子四分体时期其排列为四面体型。
- We can now use tetrahedron and hexahedron elements in three-dimensional stress analysis. 我们现在在三维应力分析中采用四面体单元和六面体单元。
- The most likely alternative structure, the tetrahedron, would produce only one isomer for this composition. 在这种情况下,最可选的结构是四面体,并且对于这个化合物将只产生一个异构体。
- By an analytic method, in this essay a vector invariant of a casual point to a tetrahedron on volume and deductions form vector invariant are given. 摘要利用解析法,给出空间任意一点与四面体体积有关的一个向量恒等式,并给出若干推论。
- The gallium and germanium present in the form of isomorphism in tetrahedron coordination with sulphur in sphalerite. 镓、锗与硫呈四面体配位,形成闪锌矿型晶体结构,以类质同象形式伴生于闪锌矿中。
- Now you are equipped for the development of the magical RNA/DNA star tetrahedron! 现在你为不可思议的RNA/DNA星四面体整装好!
- Example shows the generating rate of this algorithm is above 50? 000 tetrahedrons per second on an AMD Athlon 3200+(2.0?GHz) personal computer. 算例表明;在一台AMD Athlon3200+(主频2.;0 GHz)PC上;该算法的四面体单元生成速度达50 000个/s以上。
- Cytokinesis of petunia belonged to simultaneous cytokinesis, and quartet cell was tetrahedron form. 胞质是同时型分裂,四分体小孢子为四面体型。
- The building combines four sides of a tetrahedron: a hexagon, a cross, a rectangle and a circle into one pavilion. 建设结合四面四面体:六角形,跨,一个矩形和一个圆圈为一个展区。
- FERINGA B, WYNBERG H. Oxidative phenol coupling with cupric-amine complexes [J]. Tetrahedron Lett. 1977, 4447-4450. 翁文尤秀丽等.;固相合成联萘酚中的双金属盐协同效应[J]
- This paper proposes an algorithm to divide an arbitrary polyhedron to tetrahedrons and gives its theoretical basis, data type and implementation. 本文提出了一种将任意多面体剖分为四面体的算法,给出了算法理论基础的证明、算法具体实现步骤及所用数据结构。
- At last some additional tetrahedrons are designed specially to fill up the whole bounded space domain with the triangulation of D together. 然后,在引入空间环表定义后,采用广义边界递归剖分法实现有界域的近似四面体网格剖分;