Microtubule dynamic instability allows probing for microtubule anchor sites, and can be coupled to spindle positioning force generation.

微管的动态不稳定性允许探测微管锚网站，并可以结合主轴定位部分的构成。

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Firstly, a series of reference systems, related to GPS navigation positioning system, such as timing system, reference frame and force model system, are discussed in detail.

本文详细地论述了与GPS导航定位系统一系列有关的参考系统：时间系统、坐标系统和力模型系统。

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Under the OSSS contract, Harris provided operations, maintenance and support services to the Air Force Satellite Control network and Global Positioning System ground networks.

根据这份OSSS合同，哈里斯公司为美国空军卫星控制网络和GPS地面网络提供了运行、维护和支持服务。

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But his positioning was Wellensesque, managing to both force the pass and crucially put a finger on it to deny a try.

BBC: World Cup scouting report