directline直通行
directadj.直接的;笔直的;坦白的v.对准;指挥;指示;命令
direct outward dialing--one直拨外线-听一次拨号音
direct control microprogramming直接控制微程序设计
direct outward dialing--two直拨外线-听二次拨号音
direct complement fixation test直接补体结合试验
directed air-cooled condenser直接空冷凝汽器
direct chill continuous casting直接激冷铸造
direct-route powder reduction直接粉末还原
Direct -buried steam conduits直埋管道