Because screen hole by plugging, filtration speed gradually decreasing.

由于筛孔逐渐受堵，过滤速度呈降低趋势。

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The sieve reserved If the selected sieve make everyone follow-up screen hole for half of the former, then will get satisfactory slurry pile or pulp lump of separation results.

如果选定筛网使每个人后续筛孔为前者的一半，那么将可获得令人满意的浆堆或浆块的分离结果。

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Somebody has poked a hole in the paper screen.

有人在那个纸屏风上戳了个洞。

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There was nothing between us but a screen with a hole in it.

NEWYORKER: The Other Place

He's like a black hole in the screen, drawing us in, deeper and deeper.

CNN: OT ONLY DID HONG

Keira Knightley resumes her romantic role, as does Orlando Bloom, although his presence is not exactly strong enough to rip a hole in the screen.

NEWYORKER: Pirates of the Caribbean: Dead Man's Chest