查询词典 trigonal

Why did the Qin army choose the trigonal pyramidal for their arrowheads?

秦军为什么单单选择了这种三棱箭头呢？

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。

While the phases with complex structures such as the interstitial phase of trigonal prism, could be obtained under some certain conditions of ion beam bombardment.

而复杂结构的相，如三棱柱间隙相，只有在特定的载能离子轰击条件下才能得到。

Each metal is nine-coordinated and formed tricapped trigonal prism geometry.

每个金属离子都是9配位形成三冠三棱柱的几何构型。

A compensation method with retarders is presented, and trigonal sensor head with signal layer optical path is designed as well.

利用波片特性，提出波片补偿法，设计了三角形单层光路传感头结构。

These results can be satisfactorily interpreted in the light of trigonal bipyramidal intermediates concepts.

结果与讨论1旋光活性O一乙基一O一苯基硫代磷酞胺醋2 用本实验室已有的方法，首

Both endo-cyclic and exo-cyclic tin atoms are five-coordinated and have coordination geometry of distorted trigonal bipyramid.

内环锡和外环锡原子均为五配位的畸变三角双锥构型。

In space interception,the missile produces saturation ladder-type wave propulsion and trigonal pulse propulsion.

摘 要 在空间拦截中，导弹产生饱和梯形波推力和三角形脉冲推力。

The tin atoms are five-coordinated with geometry of distorted trigonal bipyramid.

两个锡原子为五配位的三角双锥构型。

The exo-cyclic tin atoms are five-coordinate and have coordination geometry of monocapped trigonal bipyramid with very similarly distorted mode.

有关该类化合物的晶体结构研究表明，中心锡原子的配位形式决定于直接与锡原子相连的烃基的结构和羧酸基配体的类型[8～ 10 ] 。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。