正面的

A dodecahedron with twelve regular pentagons as faces.

有十二个正五角形面的十二面体。

When they built up the quantum Liouville equation inthe phase-space representaiton and discussed the mathematicaltransformation of the wave functions between the coordinate ormomentum and phase space,Torres-Vega and Frederick alwaysassumed the positive series expansion in coordinate of potentialsof systems.This is obviously incomplete because potentials ofreal systems contains in general negative powers of coordiante.

Torres-Vega和Frederick在建立相空间中的量子Liouville方程以及讨论和推导相空间波函数和坐标或动量空间中的波函数之间的的数学变换时，总是假定体系的相互作用势仅能展成坐标的正项级数，这显然是不全面的，因为实际体系的相互作用往往都含有坐标的负幂项。

Normal fault - a dip-slip fault in which the block above the fault has moved downward relative to the block below.

正断层－断层上面的岩体相对于下面的岩体作向下运动的一种倾滑断层。

A man tried to cover a hole in his sack of maize flour he received at a food relief distribution center in Rutshuru, near Goma, in eastern Congo.

刚果， 鲁丘鲁：一名男子正用手盖住装玉米面的麻袋上的洞，这玉米面还是他从食品救济中心得来的呢。

The new policy is under assault from all sides.

新政策正受到各方面的抨击。

As two Sherpas cross a pole, National Geographic Expeditions meers sit on the rocks below.

两个夏尔巴人在独木桥上走过，国家地理探险队的队员们正坐在下面的石头上。

On current international abnormal bound is correctional implement or the heat of device --, ask slot from the lock, cultivate body to raise fight, glossal side is fixed and correctional implement reach invisible numerical control is not had ask slot correctional implement (the progress that Invisalign Appliance) reflected this tripartite range respectively.

当前国际上正畸界矫正器或装置的热点———自锁托槽、种植体支抗、舌侧固定矫正器及隐形数控无托槽矫正器分别反映了这三方面的进展。

The screws are in a hexagonal shape and also used for DVDs, VCRs and other devices in this area.

六角螺丝的形状，也正处于用于数码相机和其他装置在这方面的合作。

Through analysis of potential vorticity in isobaric surface field, in high-troposphere a positive potential vorticity disturbance before rainstorm generation;positive potential vorticity disturbance in high-troposphere downward, form one vertical disturbance column, now corresponding precipitation develop stage;When near ground arises negative potential vorticity disturbance, precipitation also weaken.

通过对等压面的位涡分析，发现在暴雨发生发展时，在对流层高层有正位涡向下扰动，在暴雨的发展鼎盛阶段，从对流层中高层到地面形成一个垂直扰动柱；位涡柱对地面气旋的发展有较好的指示性，位涡柱形成时刻前后降水达到最强；当近地面出现负的位涡扰动时，降水随之减弱。

Using the normal planar technology of bipolar junction transistor,we have fabricated the p n p high frequency,high breakdown voltage transistors which can operate in the wider temperature range from -55℃ to 180℃.

一、引言新器件的设计基于以下三方面的考虑：（1）众所周知，常规双极结型晶体管的hFE随温度上升而增大，具有正的温度系数，特别在较高温度更为严重。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。