| 单词 | spring-operated |
| 释义 | > as lemmasspring-operated spring-operated adj. ΚΠ 1881 Sci. Amer. 10 Dec. 374/3 The movement of the pencil is effected by a combination with a loose spur wheel of pinions, a spring operated detent,..and other devices controlling a pencil-carrying rack bar. 1973 E. K. Henriksen Jig & Fixture Design Man. vii. 79/1 Spring-operated ejectors..are insufficient for heavy parts. 2004 Sporting Gun Mar. (Start Shooting! Suppl.) 15/1 When the gun is opened the hammer is re-cocked by way of spring-operated levers. < as lemmas |
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