形容词
中文翻译：空气的
同义词：
['aerial', 'aerodynamic']
例句：
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1.The pneumatic tire is designed to provide better traction on uneven terrain.
这种气胎设计用于在不平坦的地形上提供更好的牵引力。
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2.The pneumatic tyres are more durable than their solid counterparts.
这种充气轮胎比它们的实心对应物更耐用。
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3. The pneumatic system is responsible for providing the air pressure in the tires.
这种充气系统负责为轮胎提供气压。