- bore & stroke - x mm
- 口径: bore; caliber; 203毫米口径的大炮 20 ...
- 与: take part in; participate in
- 冲程: travel; stroke; 4
- 缸径与冲程比: bore stroke ratio
- 口径: 1.(器物圆口的直径) bore; caliber: 203毫米口径的大炮 203 mm. gun; 大口径机枪 heavy-caliber machine gun; 小口径步枪 small-bore rifle2.(泛指要求的规格、性能等) requirements; specifications 口径不合 not meet the requirements3.(比喻说话的内容) statement 对口径 arrange to give the same story; give the same account by arrangement; 说话口径一致 speak along the same line; have the same approach in speaking about sth.; 统一口径 unify statement; 口径天线 aperture antenna; 口径照射效率 aperture-illumination efficiency; 口径阻挡 aperture blockage
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