名词
中文翻译：球体
同义词：
['sphere', 'sphere-like', 'spherical例句：1. The ballistics expert analyzed the trajectory of the projectile.（弹道学专家分析了弹丸的轨迹。）']
例句：
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1. The ballistics expert analyzed the trajectory of the projectile.
弹道学专家分析了弹丸的轨迹。
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2.The ballistics team is responsible for developing new weapons.
弹道学团队负责开发新武器。
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3. The ballistics expert calculated the speed of the projectile based on its trajectory.
弹道学专家根据弹丸的轨迹计算了其速度。