Looking side-on, Mason measures the distance between strokes.
梅森通过从侧面观察来测量每次划水之间的距离。
But gravity lessens with distance and this means that the pull from the Moon is stronger on the side of Earth that is facing the Moon.
但是,引力随距离增大而减小,这意味着月球施加在朝向自己那一面的地球部分的拉力要大些。
A medium-thick shelterbelt can reduce wind velocity by more than 10 percent to a distance of 20 times the tree height on the leeward side and three times the height to the windward.
中等厚度的防风林在背风侧可在20倍于树高的距离而在迎风侧则在3倍于树高的距离上减小风速10%以上。
应用推荐