directnessn.直接；直率directadj.直接的；笔直的；坦白的v.对准；指挥；指示；命令direct public ownership直接公有制direct-torque control直接转矩控制direct porcelain matrix烤瓷用直接成型片direct economic benefit直接经济效益direct impact amplifier对冲式放大器directed energy weapons定向能武器direct X-ray analysis直接X射线分析direct power-purchase直购电direct searching method直接搜索法direct propagation path直接传播路径