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单词 pendulum press
释义

> as lemmas

pendulum press
pendulum press n. Obsolete rare a punch press in which the punch is operated by a swinging treadle.
ΚΠ
a1884 E. H. Knight Pract. Dict. Mech. Suppl. 667/2 Pendulum press, a form of press for sheet-metal work, in which the swinging treadle actuates the punch.
extracted from pendulumn.
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