SPRING RETURN 回位弹簧 ; 单作用
spring-return switch 弹簧复位开关
spring return oil buffer 弹簧复原油压缓冲器
spring-return actuator 弹簧复位启动装置
Spring-return operating switch 自动复位的操作开关
spring return limit switch 有弹簧复位的限制开关
spring-return 弹力回程
spring-return piston 弹簧回程活塞
return spring [机] 回位弹簧 ; [机] 复位弹簧 ; 复进簧
spring-return directional valve 弹簧复位的换向阀
In the fall of the year the short days and long nights cause the "clocks" in migratory birds to undergo a kind of "winding" in preparation for their spring return and breeding.
每年秋季，短暂的白昼和长时间的黑夜令候鸟身体里的“时钟”经历某种转变，为它们春天的返回和繁殖做准备。
Quarter turn, double acting and spring return type with a totally enclosed design and no external moving linkages.
四分之一转，双动和弹簧回位类型，具有全封闭结构，没有外部活动连接。
Single acting, single rod, spring return.
单作用，单杆，弹簧复位。
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