...个随机变量来描述这许多变量所体现 的一种基本结构，从而将数据降至一个可 以掌握的水平（a 以掌握的水平（a manageable level）。这 level）。
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但近年来，中国人掌握英语的水平在显著提高，而且学英语和讲英语的中国人数量远远超过正在学习中文的以英语为母语的人。
Even so, English proficiency has improved markedly in recent years and there are undoubtedly more Chinese people learning English than there are native English speakers learning Chinese.
为了更加全面的掌握堤堰整体的变形情况，以便更好的指导施工，本文主要通过内插法以三维曲面的形式显示出堤堰整体水平位移情况。
The article mainly describes the level displacement of whole dike in 3-D surface by interpolation method for the overall mastery of the deformation of whole dike and directing the construction well.
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