directline直通行
directadj.直接的;笔直的;坦白的v.对准;指挥;指示;命令
direct negative staining method直接负染法
direct density dependent factor直接密度制约因素
direct and overdrive clutch hub直接及超速传动离合器毂
Direct Access Management System直接存取管理系统
direct radionuclide cystography直接放射核素膀胱成像(术)
direct product of linear spaces线性空间的直积
direct sequence sprbad spectrum直接序列扩频
direct-vision objective prism直视物端棱镜