例句與造句

1. This was followed by on September 3, 1850 for a " Revolver ", and by on September 10, 1850 for a " Revolver " . was issued to Roger C . Field for an economical device for minimizing the flash gap of a revolver between the barrel and the cylinder.
2. It's difficult to find flash gap in a sentence. 用flash gap造句挺難的