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自1975年美国Honeywell公司第一套TDC—2000分散控制系统问世以来,各有关公司纷纷效法,推出各自的系统。迄今世
Since the introduction of the first TDC-2000 decentralized control system of the Honeywell Company in 1975, various related companies have followed and introduced their own systems. So far