Her orbital speed must be a few hundred meters per second.其轨道速度一定是在每秒几百米。These cars are put at intervals of three meters.这些车每隔三米放一辆.The plane was flying at an altitude of 2000 meters.这时飞机的高度是2000公尺....
The Dreadnaught is 600 meters long.无畏级有600米长.The top platform, said Wu Lingtai, 13.5 meters from the ground.最高层的平台, 称武灵台, 距地面13.5米.Profundal deepwater zone of a lake beyond a depth of 10 meters.深海中水深达10米以下的区域.Stadia is a...