Two perpendicular lines are chosen as the x and y coordinate axes . 选两条垂线作为x和y坐标轴。
Draw a line perpendicular to the horizontal axis through the point . 通过这两直线的交点做横轴的垂线。
As n increases, the vertical lines not only become more numerous but also tend to bunch up together to form a bell shape . 当n增加时,不仅垂线愈来愈近,而且趋向于钟形曲形。
T should not be made larger than necessary since excessive erector damping causes the gyro to overshoot the vertical during erection . T也不应该做得比需要的更大,因为修正装置阻尼过大将使陀螺在修正过程中偏离垂线过多。
Refined determination of vertical deflection in china mainland area 我国陆地垂线偏差精化计算
Astro - geodetic deflection of the vertical 天文大地垂线偏差
Lbp length between perpendiculars 船舶垂线间高
Lbp length between perpendiculars 船舶垂线间高
Analysis of vertical distribution of suspended sediment using the pdf equation method 方程法分析悬沙垂线浓度分布