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。

youdao

But the persistent pandering to the coal sector there may be digging West Virginia in a hole from which it cannot emerge.

FORBES: A Wounded Coal Industry Seeks To Unseat A Rockefeller Who Turned On Them

When we hand out the paychecks to the hole diggers, that makes the production of more goods and services in the private sector profitable, and they hire more workers, too.

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