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 laser deposition直接激光沉积direct-access storage随机访问存储direct sales over phone电话直销direct memory interface直接存储器接口directed solidification定向性凝固direct phase difference直接相位差分Direct. manufacturing直接制造direct injection engine直接喷射式发动机directivity coefficient指向性系数direct tax on consumers[经] 直接消费税

1. Direct heating in an electric furnace is the dominant commercial practice.
   在电炉内进行直接加热成了在商业上独占的方法。
2. When combined with the detection and sample preparation chemistries, direct heating allows several test assays to be run in a single rapid reaction.
   当联合进行检测与样品准备的时候，直接加热系统允许在单次快速反应中进行几项检测。