direct red直接红directadj.直接的；笔直的；坦白的v.对准；指挥；指示；命令direct-connect modem直连调制解调器direct lightning flash直击雷directed acrylic graph有向无环图Direct-firing boiler直吹式锅炉direct trace of action直接行事途径direct staining method直接染色法direct-gene transfer直接基因转移Direct Vendor Delivery销售直接交货direct sequency system直接序列系统direct-current field直流电场