名词中文翻译
中文翻译：马赫指示器
同义词：
['Machinist indicator', 'Mach number indicator例句：1. The Mach indicator is used to measure the speed of a projectile in flight.（马赫指示器用于测量飞行中的弹丸的速度。）']
例句：
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1. The Mach indicator is used to measure the speed of a projectile in flight.
马赫指示器用于测量飞行中的弹丸的速度。
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2. The engineer used the Mach indicator to calculate the trajectory of the missile.
工程师使用马赫指示器计算导弹的轨迹。
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3. The Mach indicator was crucial for the successful launch of the spacecraft.
马赫指示器对于航天器的发射成功至关重要。