零长弹簧 zero-length spring ; [地物] zero-initial-length spring

弹簧长度 spring length

有效弹簧长 effective spring length

压缩弹簧长 compressed spring length

送料管及弹簧长度 length transfer pipe and spring

零长度金属弹簧重力仪 ZLS

反冲弹簧长度 recoil spring length

设置弹簧静止长度 Set Spring Rest Length

长孔弹簧 slot spring