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- 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！
- 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]
- The space above the floor of the tetrahedron encompasses a variety of colors that lie beyond direct human experience. 四面体底部上方的空间，包含了人类无法直接经验到的各种颜色。
- Brother WuDao:by the pics it really feels like tetrahedron!!!Expecting more your pics!!!!!! 无刀兄：看图上的感觉确实是四面的！！！期待着您更多的图片！！！！！
- This paper puts forward a method based on the tetrahedron element to construct a geological body model. 摘要在对地质体模型研究分析的基础上，提出了一种基于四面体体元构建地质体模型的方法。
- Tetrahedron sandstone statues tower, the existing four, descending, were folded pyramid. 四面体砂岩造像塔，现存4块，由大到小，呈塔形叠起。
- A nice property of a tetrahedron is that by using the texture coordinates of the 4 points, a constant texture gradient can be found across the tetrahedron. 到四面体背面的的距离可以通过把视线和背离视点的四面体表面相交并从中选择一个最小距离来得到。
