Pneumatic tubes, incredibly fast railroad cars, and powered bicycles are just some examples of the shaky steam powered vehicles that are common.

充气管道、速度惊人的有轨电车、机动自行车等等，这些只是常见的蒸汽动力交通工具中的几个例子。

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The pipe, which can be dropped from 40, 000 feet and tracked for 200 miles, makes a whoosh on its descent, reminding me of the sound of those old pneumatic tubes in department stores.

纸板管被从40 000英尺高空投下，可跟踪200英里，它嗖嗖地飞速移动，让我想起了百货商店里老旧气压管道的声音。

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The tank bodys are connected by pneumatic tyre unions and glass steel tubes, so they have the advantages of fine-looking, installation easily, reliable seel, and so on.

罐体连接采用气胎由壬加玻璃钢管，具有安装便捷、美观、密封可靠等优点；

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Most spending will go to information technology, in an era when many states still run Medicaid using paper forms and pneumatic tubes.

WSJ: Review & Outlook: Hope and Exchange