breechblock

英[bri:t?b\'l?k]
美[brit?b\'l?k]

基本釋義

n.
尾栓，閂體，螺體; 炮栓; 炮閂

英英釋義

Noun

  • 1. a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing

最新英語單詞

行業(yè)英語