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 motor driven单电动机传动的direct call service直通呼叫业务direct dialing-in直接拔入Direct Support Unit直接支援单位direct-vision port直视缝,窥视缝direct variable cost直接变动成本direct shadow set up阴影仪direct clock control直接时钟控制direct confrontation直接对质direct skin grafting直接皮肤移植