在更换电源之前，我们必须从望远镜上取下一个用四个螺丝固定的扶手。
Before we could replace the power supply, we would have to remove from the telescope a handrail fixed with four screws.
着重研究了采用斑点成像技术处理天文望远镜图像时，光学系统固定像差对图像恢复结果的影响。
The effect of the optical system aberrations on the restoration imagery is investigated when the speckle imaging technique is used to process the images of the astronomic telescope.
硬x射线调制望远镜HXMT整体有限元分析结果表明：采用螺栓固定的安装方式，硬x射线调制望远镜HXMT在正弦激励状态下满足设计要求。
Basing the simulation analysis results of HXMT, the following conclusions can be got: the design standard can be met in sine excitation state in bolt fix install method.
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