基本解释[能源科学技术]致密充填结构英汉例句双语例句Specially, a vertical cavity surface-emitting semiconductor laser is attractive, because of free arrangement and dense packing.垂直腔表面发射激光器，因其可自由排列和密集封装而特别引人注目。dense packing arrangement更多例句专业释义能源科学技术致密充填结构