The full title of the U.K. is the United Kingdom of （）and （）
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固井时，水泥返深是指（）的距离。
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利用固井质量检查测井中的（）曲线确定水泥返深。
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public and private colleges and universities and community colleges offer（）.
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利用固井质量检查测井中的（）曲线可确定水泥返深。
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（）is used for calling and replying,and for transmitting acknowleding and relaying distress alerts.
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油层套管的管外水泥返深一般要求返到目的层顶部（）以上。
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The way in which people address each other depends on their age, sex, social group and personal relationship. The English system of address forms frequently used includes first name, last name, title+last name, （）, and kin term.
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Solid waste generation，and electricity and water consumption are costly and have their own set of environmental（）.
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