过时 发表于 2025-3-23 11:43:11
R. Edward Freeman,Robert A. Phillipso decades at least..The electricity sector has unique characteristics which influence the sector’s structure. It is a capital-intensive industry where balancing supply and demand is challenging. For a nation, the electric system is a vital infrastructure. Electricity is a commodity that cannot be ecAlpha-Cells 发表于 2025-3-23 13:57:26
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Laura Dunham,R. Edward Freeman,Jeanne M. Liedtka3 by E. 1. Parkho menko and myself as the result of laboratory investigations on quartz-bearing rocks (granite, gneiss, quartz veins, etc. ) comprise the bulk of the monograph (Chapters1-4). Itwas not previously con sidered that a polycrystalline mass such as a rock could exhibit piezoelectric pro地名表 发表于 2025-3-24 02:31:44
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Robert A. Phillips,R. Edward Freemanes, electrified systems are being introduced to traditional construction machineries. Over the past decade, major manufacturers and research institutions worldwide have undertaken several projects to develop hybrid construction vehicles—including the hybrid electric bulldozer, hybrid excavator, andconfide 发表于 2025-3-24 16:09:48
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http://reply.papertrans.cn/83/8201/820038/820038_19.pngLasting 发表于 2025-3-25 01:33:05
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