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| 1. | Transistors, which are small in size, can make previously large and bulky radios light and small. |
| 体积小的晶体管使得先前那种大而笨的收音机变得轻又 |
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| 2. | Since transistors are extremely small in size and require only small amount of energy, they can make previously |
| 由于晶体管的体积非常小，而且只需要少量电能，它们能使原来庞大的设备缩小许多。 |
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| 3. | Since transistors are extremely small in size and require only small amounts of energy, they can make previously |
| 因为晶体管体体积小并且只需要少量的能，所以它们能使原来的大设备小许多。 |
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