The rotation of the earth on axis cause the change from day to night.
球围绕地轴自转导致了日夜交替的变化.
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Software are divided into DSP software base on axis control card and software based on IPC.
软件分为基于轴控制卡DSP的软件和基于IPC的 软件.着重点在自主开发的脉冲电源控制部件和基于IPC的 软件上.
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But complex control technique and on axis tracking technique play an important role.
复合控制技术、共轴跟踪技术是系统的关键.
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