名词
中文翻译：投射物重量
同义词：
['projectile mass', 'projectile mass', 'projectile mass', 'projectile mass']
例句：
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1.The rocket's projectile weight is calculated based on the launch velocity and gravity.
火箭的投射物重量是根据发射速度和重力来计算的。
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2. The projectile weight of a bullet is determined by its diameter and the density of the metal it is made from.
子弹的投射物重量是由其直径和所使用金属的密度决定的。
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3. The projectile weight affects the trajectory of the projectile, which in turn affects the accuracy of the shot.
投射物的重量会影响投射物的轨迹，进而影响射击的准确性。