- a metal block in breech-loading firearms that is withdrawn to insert the cartridge and replaced to close the breech before firing
| 单词 | breechblock |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 breech•block (brēch′blok′),USA pronunciation n. [Ordn.]
Collins Concise English Dictionary © HarperCollins Publishers:: breechblock /ˈbriːtʃˌblɒk/ n
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