high gear高速挡； 活跃的状态highadj.高的；高尚的；高级的；高度的；全盛的adv.高；奢侈地；音调高n.高水平；高气压；（麻醉品带来的）快感high frequency pulse electroplating高频脉冲电镀High impedance electric arc furnace高阻抗电弧炉High-speed long distance networks高速长距离网络High-fat-high-cholesterol diet高脂饮食high viscosity asphalt based mixture高粘度基质沥青混合料high-dimensional main memory index高维主存索引high voltage frequency speed control高压变频调速high-pressure liquid chromatograph高压液相色谱仪high spot closed-gripper mechanism高点闭牙机构high temperature oxidation mechanism高温氧化机理