生命周期体系架构里程碑为系统的体系架构建立了一个受控的基线，并令项目团队在构构建段进行测量。
The Lifecycle architecture milestone establishes a managed baseline for the architecture of the system and enables the project team to scale during the Construction phase.
从一件小事可以看出这一点：在1938年，德国陆军参谋部地图勘测和测量局的一个动员令：为应付未来作战需要，必须印制一批地图。
From a trivial matter can be seen: in 1938, the German army staff map of the survey and surveying a mobilization order: in order to meet future operational needs to print some maps.
令X射线穿过晶体：我们使用一个数学模型根据通过它们时产生的衍射来测量和观察蛋白质结构。
Sending X-rays through the crystal: Depending on how they diffract , a mathematical model is used to determine and observe the protein's structure.
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