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