tetragonal prism

The finite-difference time-domain (FDTD) method is developed for the study of transmission characteristics of 2-D photonic crystals of square dielectric rods.

把时域有限差分方法用于二维正方介质柱组成光子晶体传输函数理论研究,计算了若干情况下二维光子晶体的透射率即光传输函数随频率的变化。

Research of band gap of two-dimensional photonic crystal with square rods

二维正方柱结构光子晶体禁带的研究

Research on the Anomalous Propagation Phenomena of Electromagnetic Waves in Photonic Crystals with Square Rods

正方柱光子晶体中电磁波的异常传输现象研究

The portals of the great western front are bisected by square pillars.

正西那些大门都由方柱拦成两半。

a square post supporting a structural member at the corner of a building.

在建筑物的角上支撑建筑组件的正方形柱子。

The Research on Bearing Capacity of Steel Tube Composite Column Filled with Steel Reinforced Concrete;

钢骨—钢管混凝土柱正截面承载力计算方法研究

Anomalous Propagation in Photonic Crystals with Square Rods

正方介质柱光子晶体中异常传输现象研究

an oblique a regular, a right, a triangular ] prism

斜正、直、三角]棱柱

an oblique [ a regular, a right, a triangular ] prism

斜[正、直、三角]棱柱

Abnormal rearward curvature of the spine, resulting in protuberance of the upper back;hunchback.

脊柱后凸，驼背脊椎不正常地向后弯曲，导致背部上方凸出；驼背

Through test for beam &pillar under the condition of the abnormal heat, we propound a strengthening project.

对梁、柱受非正常高温后通过检刚，有针对性地提出加固方案。

Study on the Method for Calculation of Flexural Strength of Composite Column with Core of High-Strength Concrete Filled Steel Tube;

钢管高强混凝土核心柱正截面承载力计算方法研究

Analysis of Centralizer Mount Position of Rod String of Screw Pump Based on Rotor Dynamics Method

基于转子动力学方法研究螺杆泵抽油杆柱扶正器的布置

An abnormal forward curvature of the spine in the lumbar region.

脊柱前凸腰部脊柱不正常的向前弯曲

mono column compensate hydraulic press

单柱校正压装液压机

straight-cut gear

直齿圆柱齿轮，正齿齿轮

equalizer Mercator chart

赤切圆柱正形投影海图

equatorial cylindrical orthomorphic chart

赤道圆柱正形投影地图

double column hydraulic straightening and mounting press

双柱校正压装液压机