一如代数与算术学，致富的学问也是一门极精准的学问。
THERE is a science of getting rich, and it is an exact science, like algebra or arithmetic.
IGCT是一种基于GTO结构并利用集成门极电路进行硬驱动控制的大功率半导体开关器件。
IGCT is a kind of high power semiconductor based on GTO structure, which achieves hard turn-off by the integrated gate circuit.
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