Central Mine-Clearance Office 中央排雷办公室
Central American Mine-Clearance Assistance Programme 中美洲排雷援助方案
In the end, we received clearance from the command central to continue workingon the carriages in their original locations.
最后，指挥部批准我们继续在原地清理车厢。
The oil grooves are uniformly distributed along the radial direction of the central axis hole; and a sector between the two oil grooves is provided with an oil clearance incline.
所述油槽沿所述中央轴孔的径向均匀分布，两油槽之间的扇面上设有油隙斜面。
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