通过小功率磁控管微波干燥设备干燥黄姜的正交实验，总结出黄姜最佳干燥工艺，并分析了干燥黄姜时的耗时和耗电特性。
The equipment is used to measure energy and time cost of the yellow ginger, and the best drying craft of the yellow ginger is summarized through orthogonal experiments in this paper.
为消除LY 12 CZ铝合金激光焊接时焊缝中常见的气孔和裂纹缺陷，通过正交实验，优化了激光功率、扫描速度、保护气体流量等工艺参数，并采取适当的焊前预处理工艺。
Through orthogonal experiment, laser power, scanning rate and gas flow were optimized and pretreatment techniques were adopted to cancel pore and crack in laser weld of LY12CZ.
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