It has three little wires that connect to three different parts of the silicon, each doped a particular way to create, in this example, what’s called a bipolar junction transistor.
它有三根细线，连接到硅的三个不同部分，每根线都以特定方式掺杂，以创建所谓的双极结型晶体管。
Bipolar transistor
原声例句
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Bipolar junction transistor
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A bipolar junction transistor (bipolar transistor or BJT) is a type of transistor that uses both electron and hole charge carriers. In contrast, unipolar transistors, such as field-effect transistors, only use one kind of charge carrier. For their operation, BJTs use two junctions between two semiconductor types, n-type and p-type.
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