resources circle is one of the important theorems of maintaining the whole ecological equilibrium.

1、

在这里供需平衡是贸易法则。

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2、

according to the sector of voltage space vectors, adjacent switching state vectors are selected to calculate on-durations under volt-second balance principle.

其次，根据空间电压矢量所在的扇区，选择相邻有效开关矢量，在伏秒平衡的法则下，计算各有效开关矢量的作用时间。

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3、

the inheriting as well as the overturning of the traditional animations in narrative skills is illustrated via the analysis on the structure of binary opposition, montage and the rule of balance.

通过对二元对立结构、蒙太奇和平衡法则的分析来阐释皮克斯动画长片在叙事手法上对传统动画的继承与颠覆。

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4、

thus, according to energy equilibrium law, the leaf emissivity simulate model was set up to estimate the leaf emissivity.

为此基于能量平衡法则，建立叶片发射率仿真模型，可用以估算叶片发射率。

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5、

emphasis on the three basic principles of equilibrium, geometric compatibility, and material behavior.

重点是在三个基本平衡法则，几何兼容性和物质特征。

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6、

the process of the website is developed according to the software life cycle principle to analyze the function demand during the requirements analysis section, including the system flow analysis.

本网站开发过程中将依照软件生命周期法则，在需求分析阶段进行了功能需求分析，其中包括系统流程分析。

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7、

testing study on vibration isolation characteristics of the rocking vibration isolation system

摇架式隔振系统隔振特性的试验研究

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8、

the rocking vibration analysis of rigid strip foundation resting on saturated soils is studied under conditions of plane strain.

本文在平面应变条件下研究了饱和地基上条形刚性基础的摇摆振动问题。

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9、

then, the rocking vibration analysis of elastic strip foundation resting on saturated grounds is investigated.

接下来本文进一步研究了饱和地基上条形弹性基础的摇摆振动问题。

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10、

the rocking vibration of a flexible circular plate with rigid core resting on saturated ground is studied.

基于饱和土弹性波动方程，研究了饱和地基上含刚核弹性圆板在摇摆谐和力矩作用下的振动特性。

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11、

research notes of good pork-type hog paring trait

优质肉猪配套组合性能测定研究初报

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12、

application of pressure drawdown test with electronic gauges in water well

电子压力计在水井压降测试中的应用

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13、

the law of use and the law of compounding interest will begin to build up an enormous amount of money.

使用的法则和复利的法则会增进大量的钱财。

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14、

the pareto criterion or the 80/ 20 principle claims that the efficiency can be highly improved as long as the crucial factor is grasped.

帕累托原则或称80/20法则说明，只要抓住起决定性作用的要素，就能极大提高效率。

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15、

fixed versus retractable landing gear

固定的起落架与可收

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16、

so-called "the hedgehog principle" is "the psychic distance effect" in the human communication.

所谓的刺猬法则就是人际交往中的心理距离效应。

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17、

countermeasure analysis to internal promotion of enterprise on the basis of peter principle

企业内部晋升遭遇彼得原理的对策分析

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18、

forces and displacements of jointless switches group on ground line of beijing airport

首都机场线地面线无缝道岔群的受力及变形

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19、

beijing capital airport is the largest and busiest international airport of china.

北京首都机场是全国规模最大、运输最繁忙的国际航空港。

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20、

inter-provincial shuttle from beijing to qinhuangdao is provided.

从北京首都机场到秦皇岛可以乘坐机场大巴。

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