annular column 环形柱 ; 环隙塔
rotary annular column 旋转环隙塔
column rotary annular 环形旋转塔
annular pulsed extraction column 环形脉冲萃取柱
When there is a foam column is the annular space of a pumping oil well there will be no distinct gas-oil interface.
当抽油井的环形空间中出现泡沫段时，将会失去明显的油-气界面。
The horizontal annular and vertical crack of the high buildings, along with the horizontal crack and the crush of RC column can be due to the vertical seismic component action.
高耸建筑的水平环缝和竖向裂缝、钢筋砼柱的水平裂缝以及压溃破坏等震害现象，可以归结为地震竖向分量的作用；
A pulsed extraction column with an annular cross section can successfully provide large-cross-section and can be made critically safe for nuclear operation.
具有环状截面的脉冲萃取柱可以有效地提供更大的柱截面积，并且保证核燃料的临界安全。
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