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- Nothing can be done if the optical tube is not perpendicular to the declination axis or if the R.A. and Dec axes are not perpendicular, because these problems are next to impossible to fix. 但没有避光学镜筒没有垂直于赤纬轴，或是赤纬轴与赤经轴没有互相垂直更糟的情况，因为这需问题会导致根本无法固定住要观测的目标。
- The heavy ax was awkward to use. 这把重斧头不好用。
- The axis of a circle is its diameter. 圆的轴线是其直径。
- The firemen splintered the door with an ax. 消防队员们用斧头将门砸开。
- Does the earth rotate on an axis? 地球是绕轴旋转的吗？
- A wheel revolves round/on its axis. 轮子是绕轴旋转的。
- The man cleft a block of wood in two with an ax. 那人用斧头把一块木头劈成两半。
- John got the ax from Mary-they won't see each other again. 约翰被玛丽拒绝了－他们从此不再来往。
- Having or mounted on a common axis. 同轴的有或装上共同轴的
- declination axis 赤纬轴
- Next to or facing the main stem or axis. 近茎轴一侧的紧挨着主茎或轴的，面向主茎或轴的
- The hunter cut off the animal's head with one chop of an ax. 猎人一斧砍下猎物的头。
- He hacked the box apart with the ax. 他用斧头把盒子劈开。
- I'd like to see what chance I could find to trade off my ax handles. 我要看看我能找个什么机会卖掉我这些斧头柄。
- The complement of the declination. 极距磁偏余角
- Several of our plans got the ax when the new government came in. 新政府上台后，我们有几个计划被砍掉了。
- A groove or notch made by a cutting tool, such as a saw or an ax. 锯缝，劈痕切割型工具如锯或斧子所制造的沟槽或凹口
- A handle of a tool, such as an ax, a chisel, or a hammer. 柄工具的手柄，如斧头、凿子或锤子的柄
- The earth's axis is the line between the North and South Poles. 地轴是南北极之间的线。
- The earth's axis is titled at an angle of about 231. 地轴倾斜成约二百三十一度角。
