1. toward the head in the direction of the head a stream lengthens its course by eroding headward
2. proceeding toward the head occurring at or near the head headward erosion of a valley loss of consciousness caused by headward acceleration of the body
3. feudal service consisting in acting as a guard to the lord
headward 片语
片语
cirque headward冰斗溯源
headward gradient头向梯度加速度
headward deposition[地理]
headward end前端
headward acceleration头向加速度
headward sedimentation溯源淤积
headward erosion[地理] 溯源侵蚀;向源侵蚀
headward growth头向生长
headward detail溯源的
headward 例句
英汉例句
The article was discussed that national standard samples acted importantly on magnitude headward of air automatic monitoring system.
阐述了国家标準样品在空气自监测系统量值溯源中的重要作用。
The change of ephemeral gully headward erosion, gully-wall collapsing and deep-cutting erosion were quantified in the three stages of initial-phase, metaphase and anaphase.