Development of such distributed feedback heterostructure lasers requires crystal growth on corrugated layers.研制这种分布反馈双异质结构激光器要求在皱折层上生长出单晶层.We produce metal plates and corrugated sheets in different thicknesses.我们生产不同厚度的金...
Ann Bradley dispels the old wives' tales and gives the medical facts.安·布拉德利破除迷信，给出了医学事实。Bradley will go down in history as Los Angeles' longest serving mayor.布拉德利将作为洛杉矶任期最长的市长被载入史册。Bradley has been considered a...
The microstrip log periodic antenna was discussed and analyzed.讨论和分析微带对数周期天线.Two periodic jackknife, be helpful for national economy growing quickly continuously.两个周期的重叠, 有利于国民经济持续快速增长.The motion is periodic, which means...