内开槽 internal recessing ; internal grooving ; Inner Slotted

内开锁 drawback lock

室内开关 snap switch ; cubicle switch

底悬内开翻窗 bottom-hinged inswinging window ; hinged inswinging window

室内开关装置 indoor switch gear

内开式 swing-in

顶悬内开撑窗 top-hinged inswinging window

内开窗 in-swinging casement window ; inward opening window ; in-opening window ; inwardly opened window

轿内开关控制 car switch operation ; car handle control

车内开启 internal release