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单词 impact screen
释义

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impact screen
impact screen n. (see quot.).
ΚΠ
1909 H. Louis Dressing of Minerals 42 The Impact Screen..consists of a screen usually of fine mesh and set at a rather steep angle, which receives downward jerks from a cam at the rate of 600 per minute, the screen being thrown upwards again by a spring.
extracted from impactn.
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更新时间:2024/12/23 20:52:57