directionlessadj.无方向的；无目标的directionn.方向；指导；用法说明；趋势；目标；管理direction controller方向控制器directional response指向性响应directional template方向模板Directional tracking定向跟踪directional drilling定向钻孔directional crossing定向穿越directional topology有向拓扑结构directional drainage极性排流directional training定向培训; 代培direction in polymer高分子方向

1. The signpost points in a westerly direction.
   路标指向西。
2. Arrow transport confirmed that truck haul would be possible.
   路标证实卡车运输是可能的。