systemic action

A systemic analysis has been made for meshing properties of the straight conjugating internal gear pair in this paper, involving the solution of conjugated tooth profile, meshing process and line of action, as well as the influences of gear designing parameters on the contact ratio.

对直线共轭内啮合齿轮副的啮合特性进行了全面分析，包括共轭齿形的求解、啮合过程分析和重合度计算及齿轮参数对重合度的影响等内容。

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Taken together with the charges unsealed last spring, the United States has now taken criminal action against the three successive presidents of both Concacaf and Conmebol, a signal of the systemic nature of the allegations that span decades.

加上去年春天公布的起诉，美国已经对中北美和加勒比地区足联Concacaf和Conmebol连续三届共六名主席提起了刑事诉讼，显示出这些覆盖了几十年时间的指控深入到了整个系统。

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Statistical datum and researches have indicated that some cracks of concrete box-girder are caused by temperature action, which results from lack of in-depth research on concrete box-girder temperature field basing on systemic observing datum.

统计资料和研究表明，公路桥梁混凝土箱梁某些部位裂缝是由于温度作用而产生的，其原因是缺乏在系统的观测数据上对混凝土箱梁温度场的深入研究。

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When local action or systemic action to taken

何时采取局部措施或系统措施

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