由于尺寸小，重量轻，晶体管优于真空管。
Being small and light makes transistors more advantageous to vacuum tubes.
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.
晶体管比真空管体积小、价格低，而且运行快而发热少。
Transistors are smaller and less expensive than vacuum tubes, and they operate faster and produce less heat.
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