Especially at first, the high-purity ingots were left over from integrated-circuit manufacture, but later the process was used to make PV cells themselves, Rogol recounts.
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释义
罗葛指出,特别是在初期,高纯度晶棒只是积体电路制造业的剩馀产物,但后来这项制程主要用来制造光伏电池。
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