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A subcritical and transcritical carbon dioxide refrigeration system utilizing multiple expansion devices

颁布单位：[Stellenbosch University] | 颁布时间：2014 | 实施时间：2014 | 学科分类：[["Carbon, dioxide",, "Refrigeration, and, refrigerating, machinery, --, Design, and, construction",, "Critical, temperatures, in, refrigeration",, "Dissertations, --, Mechanical, and, mechatronic, engineering",, "UCTD",, "Theses, --, Mechanical, and, mechatronic, engineering"]]

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Discrete element modeling of a vibratory subsoiler

颁布单位：[Stellenbosch University] | 颁布时间：2007 | 实施时间：2007 | 学科分类：[["Dissertations, --, Mechanical, engineering",, "Theses, --, Mechanical, engineering",, "Agricultural, machinery, --, Design, and, construction",, "Agricultural, machinery, --, Vibration",, "Plows, --, Vibration",, "Soil, ripping",, "Mechanical, and, Mechatronic, Engineering"]]

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