bellcrank
曲拐
词形变化
bellcranks
复数
bellcranks
别名
bell crank
释义与例句
n.
-
1.
A type of crank that changes motion through an angle, typically 90 or 180 degrees.
工程
词源
From bell + crank, because of its original use in changing the vertical pull on a rope to a horizontal pull on the striker of a bell.
来源:wiktionary