凹口半径 radius of notch
凹口波 Notch
凹口波发生器 notch generator
凹口波滤波器 notch filter
凹口车床 gap lathe
凹口冲辉验 notched bar impact test; impact test on notched test bar
凹口冲头 notching punch
凹口床台 gap bed
凹口脆性 notch brittleness
凹口断裂试验 nick break test; nick bend test
凹口感度 notch sensibility
凹口管节 socket union
凹口剪床 gap shear; gap shears
凹口剪切机 gap shears
凹口两合器 notch diplexer
凹口滤波器 notch filter; Notch
凹口盲区 notch blind area
凹口碾磨机 gap mill
凹口碰撞强度 notch impact strength