Based on our country's city social space structure theories, the model of the residential space difference was established by investigating 125 living areas in Shijiazhuang city.

在介绍我国城市社会空间结构理论的基础上，调查获取了石家庄市125个居住小区的数据，构建了石家庄市居住空间分异模型。

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The preconditions of applying kicking methods correctly involve analyzing the application opportunity of various kicking methods, grasping the time, distance and space difference.

分析各种腿法的运用时机，掌握好时间、距离和空间差，是正确运用腿法的先决条件。

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As a result of economic and social reconstruction, the so-called global urbans have resulted in serious space difference.

由于经济社会的重构，那些所谓全球城市出现了严重的空间差异。

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Another difference between physical space and cyberspace is the goal of an attack.

FORBES: Cyber Security Fails As 3.6 Million Social Security Numbers Breached In South Carolina

In physical space, there is a huge difference between an original and a copy of something.

FORBES: Cyber Security Fails As 3.6 Million Social Security Numbers Breached In South Carolina

"Yes, if I am getting less than 100% of the seat I paid for, the person taking my space should have to make up the difference, " a CNN.com commenter wrote.

CNN: Pay-as-you-weigh airfares the 'next step'