英文：A thin, crisp wafer or biscuit, usually made of unsweetened dough.
中文：薄脆饼干一种通常由不含糖的生面团做成的薄脆饼干
英文：Microelectronic circuits in which the passive components and their metallic interconnections are formed directly on an insulating substrate and the active semiconductor devices(usually in wafer form) are added subsequently.
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