calibre
Meanings
口径
Examples :
"The man collected cartridges of various calibre, including some labeled ".22" and others as "9mm," even though the actual diameter of the bullets might differ slightly from those nominal measurements. "
その男は、弾丸の実際の直径がこれらの公称測定値とわずかに異なる可能性があるにもかかわらず、".22"とラベル付けされたものや、"9mm"としてラベル付けされたものなど、さまざまな口径のカートリッジを収集しました。
口径
Unit of measure used to express the length of the bore of a weapon. The number of calibres is determined by dividing the length of the bore of the weapon, from the breech face of the tube to the muzzle, by the diameter of its bore. A gun tube the bore of which is 40 feet (480 inches) long and 12 inches in diameter is said to be 40 calibers long.