The cutting model of circular tool is set up with least energy by theoretic analysis, the flow direction is forecasted, and the feasibility is validated.
应用最小能量法建立了圆弧刃切削的切削模型，预测分析了其流屑方向，进行了试验验证。
Process refers to a medium plate heat exchanger in a set of parallel flow, flow direction and flow within the dow plate heat exchanger, consisting of two adjacent plate medium flow channel.
流程指板式换热器内一种介质同一流动方向的一组并联流道，而流道指板式换热器内，相邻两板片组成的介质流动通道。
History has an ebb and flow of justice, but history also has a visible direction, set by liberty and the Author of liberty.
历史的正义潮起潮落，但历史永远有它明确的方向，被自由和自由的实施者所指引。
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