ground speed ground velocity speed on the ground speed over the ground
Example Sentences:
1.
Slowest mammal - the sloth . it has an average ground speed of only 6 - 8 feet per minute 最慢的哺乳动物：树懒。它的平均对地速度是每分钟6 8英尺。
2.
Pilot use a hand - hold gps unit to measure their speed over the ground and to report their landing position following xc flights 飞伞者可以使用手持式gps去测量飞行时对地速度及提供越野飞行时降落位置座标。
