名词
中文翻译:Unknown
同义词:
['1. launcher', 'launch mechanism2. projectile motion']
例句:
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3. hoisting device例句:1. The engineer used a projectile hoist to lift the heavy machine.
工程师使用弹射器将沉重的机器提升起来。
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2.The scientist conducted a study on projectile motion using a model of the Earth's orbit.
科学家用地球轨道模型进行了关于抛物线运动的实验研究。
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3.The construction workers were using a hoist to lift the heavy beam into place.
建筑工人正在使用吊车将重梁吊装到位。