So it's trigonal because we have these three atoms that are bound to the central atom here, and if you picture it, it's actually shaped like a pyramid.
这里三角形是因为,我们有3个原子核中心原子成键，如果你画它，它就是金字塔形的。
A trigonal bipyramid has three equatorial and two axial positions.
一个三角双锥体有三个赤道位和两个轴向位。
The grey cluster model with fixed weights is introduced, then a new evaluation model based on trigonal whitenization weight function is formulated.
在灰色定权聚类模型的基础上，提出了一种基于三角白化权函数的评估模型。
A new calculating method has been proposed for the elongation and twist of trigonal prism.
建立了一种新的三棱柱配位结构伸缩变形和扭曲变形的计算方法。
In the crystals of the complex, the tin atoms are penta-coordinated in a distorted trigonal bipyramidal configuration.
在该配合物的晶体中，锡原子呈五配位畸变三角双锥构型。
Color ring and a level section of A. H. Munsell color solid were analysed with regular triangle. Schemes for trigonal color design suitable for furniture design were suggested.
通过正三角形分析色环及孟赛尔色立体水平剖面，寻找三角色设计的配色方法，并应用于家具设计中。
A method of obtaining the pure mode direction of the trigonal system by the slowness surfaces is introduced.
本文介绍了一种利用慢度曲面判断三方晶系晶体纯模轴的方法。
The utility model provides a trigonal pencil which consists of a pencil core and a pencil body, and is characterized in that the trigonal pencil body is arranged on the periphery of the pencil core.
本实用新型提供一种由铅笔芯和铅笔体组成的三棱 铅笔，其特征是：在铅笔芯外围设置一三棱柱形铅笔体。
The crystal structure has been determined by X ray single crystal diffraction, showing a distorted trigonal bipyramidal configuration with five coordination for the central tin atom.
通过元素分析、 红外光谱和氢核磁共振谱对其结构进行了表征。用X-射线单晶衍射测定了该化合物的晶体结构。
The crystal structure has been determined by X ray single crystal diffraction, showing a distorted trigonal bipyramidal configuration with five coordination for the central tin atom.
通过元素分析、 红外光谱和氢核磁共振谱对其结构进行了表征。用X-射线单晶衍射测定了该化合物的晶体结构。
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