This year’s observance of the International Day Against Nuclear Tests marks the twentieth anniversary of the closure of the nuclear weapons test site at Semipalatinsk, Kazakhstan.

今年禁止核试验国际日正值哈萨克斯坦塞米巴拉金斯克核武器试验场关闭20周年。

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Integration, system test, user documentation, training material preparation, and marketing material preparation are among closure tasks.

结束阶段的任务包括集成，系统测试，用户文档，培训材料和市场营销材料的准备。

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Based on the analysis of test results, the effect of both the surface topography and loading frequency on the joint closure behavior is discussed.

通过对试验结果的分析，获得加载频率和表面形态对节理闭合变形性质的影响规律。

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But Chambers, banned in 2003 for a positive drug test, has expressed his determination for closure over his past and has looked determined to let his feet do the talking.

BBC: Chambers storms to gold in Turin