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Also choose elevation angles as positive above the boresight axis and negative below, and choose azimuth angles as positive in a clockwise direction and negative in a counterclockwise direction.

同时规定波束仰角在视轴线以上为正，以下为负，方位角以顺时针方向为正，逆时针方向为负。

The lowest loss mode fields and the far field divergency angles of output beams of the UPCUR are calculated by use of Prony method. The relations between the mode discriminability, far field divergency angles and the parameters of the resonator are analyzed. And the theoretical results show that the output beams with diffraction limit quality can be obtained by using the UPUR with small magnification (M=1. 3), which is much better than the traditional unstable resonator under the same conditions.

采用Prony方法计算均匀相位输出耦合镜非稳腔的输出模场分布及远场方向性，分析了模式分辨率和光束远场发散角与系统各参数之间的关系，理论计算得到的结果表明，采用均匀相位输出耦合镜非稳腔，可以在小放大倍率(M=1.3)情况下得到质量达到衍射极限的输出光束，远远好于同等条件下的常规非稳腔，因此这种新型的谐振腔适用于在工业用千瓦级氧碘化学激光器。

After that, we calculate, describe and analyze the usage of each adverb of degree roundly, concretely and detailedly. The angles of study on each adverb mainly include the origin and development, the ability of combination, the function of syntax, the applicability of sentence-type, etc. We also compare the synonymy monosyllable and disyllable adverbs of degree synchronically from the syntactic, semantic and pragmatic angles.

然后对各个程度副词的使用情况进行全面、具体、详尽的计量、描写与分析，研究的角度主要包括来源发展、组合能力、句法功能、适用句式等，并对同义的单、双音节程度副词从句法、语义、语用的角度进行了共时的比较。

Except for the high frequencyvibrations related to the changes of bond lengths and bond angles,the low frequencyvibrations related to the changes of double plane angles contribute to the internalreorganization energy significantly.

除与键长，键角变化相应的高频振动的贡献外，与二面角变化相应的低频振动对内重组能也有显著贡献，这也是导致〓，〓，及〓体系内重组能及自交换速率常数不同的主要原因。

For example, if you draw a triangle on a flat piece of paper the sum of its angles is equal to two right angles (as you know from elementary geometry ).

比如说，如果你在一张平坦的纸张上画一个三角形，它所有内角之和等于两个直角之和（如你从初等几何中所知的）。

We calculate the angles between the P axis and the T axis of two focal mechanism solutions in 3 dimensions, and take the sum of two angles as the distance. By using the system cluster method, the classification of focal mechanism solutions has been carried out.

计算2个震源机制的2个 P 轴在三维空间中的夹角和2个 T 轴之间的夹角，再以2个夹角之和作为距离，采用系统聚类的方法对大量地震震源机制解进行分类。

Bitter [3] and Neilson and Gilchrist [4] consider, in addition, cutting erosion that prevails to low angles and deformation erosion to high angles of impact.

彼特[3]和勒尔狲和里斯特[4]考虑，此外，侵蚀切割普遍存在低角度和变形的侵蚀，高角度的影响。

At least one through-bore in each of the drill guide arms guides a drill bit at right angles into the work piece, with each through bore (17, 18) having an axial length sufficient for guiding a hand held drill to drill a work piece bore at right angles to the joint surface.

在每个钻孔导向臂中至少有一个通孔，用于以直角将钻头导向到工件中，每个通孔（17，18）都在轴向上足够长，以在与连接表面大致成直角的方向导引手持钻头来钻出工件孔。

High cutting speeds, high rake angles, and high relief angles are recommended.

高的切削速度，高的前角和高的后角都被推荐了。

It is called pleochroism when minerals or grains contained in a rock exhibiting variety of colors when viewed at any angles or spot under "polarizing petrographic microscope" Iolite gems have variety of colors depending on the angles.

它被称为多色当矿物或岩石中包含谷物展示各种颜色时，在任何角度观看，或当场在"偏光显微镜岩"玛瑙宝石有各种颜色不同的角度。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。