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substrate 音標拼音: [s'ʌbstr,et] n. 基層;基座;襯底;基底 基層;基座;襯底;基底 substrate 基體 substrate 基體 substrate n 1: the substance that is acted upon by an enzyme or ferment 2: a surface on which an organism grows or is attached; "the gardener talked about the proper substrate for acid-loving plants" [synonym: {substrate}, {substratum}] 3: any stratum or layer lying underneath another [synonym: {substrate}, {substratum}] 4: an indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population; "the Celtic languages of Britain are a substrate for English" [synonym: {substrate}, {substratum}] Substrate \Sub"strate\, n. A substratum. [R.] [1913 Webster] Substrate \Sub"strate\, a. Having very slight furrows. [R.] [1913 Webster] Substrate \Sub*strate"\, v. t. [L. substratus, p. p. of substrahere. See {Substratum}.] To strew or lay under anything. [Obs.] [1913 Webster] The melted glass being supported by the substrated sand. --Boyle. [1913 Webster] onto which other layers are deposited to form the circuit. The substrate is usually Silicon, though Sapphire is used for certain applications, particularly military, where radiation resistance is important. The substrate is originally part of the {wafer} from which the {die} is cut. It is used as the electrical {ground} for the circuit. (1996-04-07)
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