Direct PCR直接PCRdirectadj.直接的；笔直的；坦白的v.对准；指挥；指示；命令direct carbon fuel cell直接碳燃料电池direct product topology直积拓扑direct-current ringer直流振铃器direct social behaviour直接社会行为direct wave suppression直达波抑制direct delayed reaction直接迟缓反应Direct network reported网络直报direct address capacity直接寻址能力Direct electric current直流电流Direct Power Conversion功率直接变换

1. The course which will cut each meridian at the same angle is termed a rhumb line.
   与每一子午线相交成同一角度的航向叫恒向线。
2. All planar structures are represented by a strike line and dip angle.
   一切平面构造均可用向线和倾斜角来表示。