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单词 levelling-screw
释义

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levelling-screw
levelling-screw n. a screw used to adjust parts of a contrivance to an exact level.
ΘΚΠ
society > occupation and work > equipment > machine > parts of machines > other parts > [noun] > adjusting parts
pinching screw1818
levelling-screw1849
needlea1884
1849 R. V. Dixon Treat. Heat i. 51 A strong T-shaped bar of iron, furnished with two levels, and placed on a board provided with levelling screws.
1866 R. M. Ferguson Electricity 19 Upon a tripod provided with levelling screws stands the pillar.
extracted from levellingn.
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更新时间:2025/1/11 17:31:51