key pin
noun
1A pin or thin rod used to hold something in place; compare sense A. 12a.
2 Music a pin passing through the key of a piano, organ, or similar instrument, in order to maintain and control its downward movement.
Origin
Mid 19th century.
| 单词 | key pin |
| 释义 | key pinnoun 1A pin or thin rod used to hold something in place; compare sense A. 12a. 2 Music a pin passing through the key of a piano, organ, or similar instrument, in order to maintain and control its downward movement. Origin |
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