N a folding rear sight on certain rifles (步枪)瞄准标尺
leaf type sight立框式表尺
folding leaf tangent sight折叠式弧形表尺
leaf type rear sight立框式表尺
leaf of descartes sight瞄准标尺
folding leaf type rear sight折叠式弧形表尺
sight leaf[军] 表尺板;表尺板
back sight leaf表尺板
Rear sight leaf卡片表尺板;表尺板
sight leaf graduations表尺分划
N（名词） a folding rear sight on certain rifles (步枪)瞄准标尺