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- [4] COMPUTER CONTROL IMPROVES SYSTEM EFFICIENCY. Industrial finishing Wheaton, 1987, 63 (09): : 20 - 22
- [6] EQUITABLE GAS IMPROVES ENGINE COMBUSTION EFFICIENCY. Pipe line industry Houston, Tex., 1988, 69 (01): : 19 - 21
- [7] LIME PLANT EXPANDS AND IMPROVES PROCESS THERMAL EFFICIENCY. Western miner, 1979, 52 (11): : 10 - 12
- [8] LINEAR POST REGULATOR CHIP IMPROVES PSU EFFICIENCY. Electronic Product Design, 1987, 8 (03): : 65 - 67