以上来源于: WordNet
The chemist made a vacuum in the bell jar when he exhausted the air from it.
化学家抽走钟形瓶内的空气，使其成为真空。
Three bell laboratories scientists invented this device, which was faster, smaller, more reliable and consumed less energy than vacuum - tube technology.
贝尔实验室的三位科学家发明了这项速度快、体积小、更加可靠，并且比真空管大大节能的新技术。
Three Bell Laboratories scientists invented this device, which was faster, smaller, more reliable and consumed less energy than vacuum-tube technology.
贝尔实验室的三位科学家发明了这项速度快、体积小、更加可靠，并且比真空管大大节能的新技术。
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