The axis is not changed equivalently, through managing multiple focal levels, can fully utilize axis space, keeping overall information while observing detailed information of key area.

坐标轴非等值变化通过多层焦点的交互控制实现，可以充分利用坐标轴空间，在观察重点区域详细信息的同时保持总体浏览。

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Unfasten the R. A. clamp and turn the telescope around the polar axis to set the observing date on the date graduation ring to the observing time on the R. A. and hour graduation ring.

松开赤经制动钮并使望远镜围绕极轴旋转用以设置日期刻度盘上的观测日期对准赤经兼小时刻度盘上的观测时点。

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Without observing the inner side of the practical blackbody, the axial reflectivity is maximum, and the reflectivity decreases as the angle that departs from axis increases.

在没有观测到侧壁的前提下，其轴向反射率最大，随着偏离轴线角度的增加，反射率逐渐减小。

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