重点词汇
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炮弹
shell; artillery shell; cannonball; projectile; bomb; missile
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冲力
impulse; impact force; thrust; momentum; driving force; propulsion
中英释义:
impetus of a cannon ball
炮弹
shell; artillery shell; cannonball; projectile; bomb; missile
冲力
impulse; impact force; thrust; momentum; driving force; propulsion