plasma pinch pump 等离子体箍缩泵
Many families are feeling the pinch at the grocery store and the gas pump.
许多家庭在杂货店和汽油站都会感到手头拮据。
Based on pinch analysis method and exergy principle, a new approach is developed to optimize the heat-pump integration between low-temperature distillation column and refrigeration system.
本文复合夹点分析方法和分析原理，建立了低温蒸馏塔与冷冻系统热泵流程集成的优化方法。
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