direct cut直接劈directadj.直接的；笔直的；坦白的v.对准；指挥；指示；命令directed cyclic graph有向无圈图direct- reading AES直读光谱direct-fired boiler直吹式制粉锅炉direct pressure press压型机direct embedment bolt直埋螺栓direct memory address直接存储地址direct buffering mode直接缓冲方式Direct Fire Simulator直接射击模拟器direct-on enameling无底釉搪瓷direct-wire circuit[电] 直线电路