对称

Besides, to symmetrical and unsymmetrical vertical irregularities, some particular pricipal for that are also obtained.

同时，针对垂向对称不平顺和不对称不平顺，得到了一些特性规律。

Furthermore, this paper develops a practically seismic design method of the middle-rise or low-rise symmetric structures with unsymmetrically viscous dampers on the basis of the theoretical analysis and provides corresponding formulas to obtain the translation-torsion coupling seismic response.

此外，在理论分析的基础上进一步提出了中低层对称结构不对称安装粘滞消能器时的实用抗震设计方法，推导出了相应的平扭耦合地震作用的计算公式。

A general novel synthetic method to Symmetrically or unsymmetrically 2,3,6,7- substituted thieno[2,3-d:5,4-d\']dipyrimidine-4,5(3H,6H)-diones and 2-substituted benzothieno[3,2-d] pyrimidin-4(3H)-dione by utilizing aza-Wittig reaction was proposed firstly. This synthetic method has the advantage of easily accessible starting material, mild condition and good yields.

具体研究内容如下：1、首次研究了应用aza-Wittig反应方法合成2，3，6，7-对称与不对称四取代噻吩并[2，3-d；5，4-d\']双嘧啶-4，5(3H，6H)-二酮以及2-取代苯并噻吩并[3，2-d]嘧啶-4(3H)-酮衍生物的通用新方法，该方法原料易得，条件温和，收率较高。

The Chinese botanical garden completely is different, also does not ask the spool thread to be symmetrical, also does not have any rule to be possible to follow, on the contrary is actually the mountain surrounded by water hugs, winds windingly, not only flowers and plants trees, no matter what original condition of the nature, even if constructs artificially also as far as possible complies with the nature, but is irregular, makes every effort with the nature fusion.

西方园林所体现的是人工美，不仅布局对称、规则、严谨，就连花草都修整的方方正正，从而呈现出一种几何图案美，从现象上看西方造园主要是立足于用人工方法改变其自然状态。中国园林则完全不同，既不求轴线对称，也没有任何规则可循，相反却是山环水抱，曲折蜿蜒，不仅花草树木任自然之原貌，即使人工建筑也尽量顺应自然而参差错落，力求与自然融合。

The Chinese botanical garden completely is different, also does not ask the spool thread to be symmetrical, also does not have any rule to be possible to follow, on the contrary is actually the mountain surrounded by water hugs, winds windingly, not only flowers and plants trees, no matter what original condition of the nature, even if constructs artificially also as far as possible compl ie s with the nature, but is irregular, makes every effort with the nature fusion.

西方园林所体现的是人工美，不仅布局对称、规则、严谨，就连花草都修整的方方正正，从而呈现出一种几何图案美，从现象上看西方造园主要是立足于用人工方法改变其自然状态。中国园林则完全不同，既不求轴线对称，也没有任何规则可循，相反却是山环水抱，曲折蜿蜒，不仅花草树木任自然之原貌，即使人工建筑也尽量顺应自然而参差错落，力求与自然融合。

Parametric design programs of the total tooth models of unsymmetric and symmetric involute gears were developed by Autolisp language, and the total models were transferred into ANSYS and calculated by finite element method.

用Autolisp语言开发了非对称与对称齿轮全齿模型的参数化设计程序，将生成的全齿模型导入ANSYS进行有限元分析。

Previous asymmetric regulatory policies will gradually be transformed symmetric, the tendency of acclimatizing regulatory system to convergence among.corns shows regulation integration, thus establish a situation of workable competition of local telecommunication.Ⅲ.

管制体制出现了管制融合、不对称管制向对称的管制转变的趋势，本地电信有效竞争的格局得以确立。

The antipathies, I think--'(she was rather glad there WAS no one listening, this time, as it didn't sound at all the right word) '--but I shall have to ask them what the name of the country is, you know

爱丽丝对&地球对面的人&的概念模糊，以为他们是&头朝下&走路的，而且把&对跖人&错念成&对称人&了。吧？&这次她很高兴没人听她说话，因为&对称人这个名词似乎不

Effect of biasing electric field on the propagation behavior of Lamb wave in a piezoelectric plate.

由于板结构的对称性，板中存在关于中心平面对称和反对称的多阶模态。

First,the original symmetrical differencing is improved.Then,background is reconstructed based on the symmetrical differencing results.

首先对对称差分算法进行了改进，然后基于对称差分结果进行背景重构。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。