direct STI直接浅沟道隔离directadj.直接的；笔直的；坦白的v.对准；指挥；指示；命令direct predistortion直接预失真direct mixing method直接混合法direct expenses cost[经] 直接费用成本direct precipitation直接沉淀法direct current level直流电平direct store expense商店直接费用directed application直接施用directed euler graph有向欧拉图direct pronunciation直接拼音direct consideration直接报酬