adj.与其他天体作同方向运行的
Prograde orbits are more vulnerable than retrograde ones. 因此顺行的轨道会比逆行轨道更加脆弱。
A surprise in this computation is the presence of prograde motion in the fundamental mode. 一个意外的计算结果是在基本型中出现前进运动。
Type V (occlusion group). Lesions have no prograde flow and no lumen is identified. 型（闭塞组）：没有前向血流，没有管腔。
If irregular moons were originally equally likely to be either prograde or retrograde, this resonance could explain why most moons are now retrograde. 若顺行与逆行的不规则卫星数量原本是平均分布的话，那麽此共振态便可以解释为什麽现在大部份的不规则卫星都是逆行的。
Braided-river deltas that braided river systems prograde into an inland lake are first found in the Palaeogene Shahejie Formation in the Gudong area, Shengli Oil Field. 胜利油田孤东矿区老第三系沙河街组中发现丰富的湖泊辫状河三角洲沉积物,其特征显著,明显有别于其他类型的三角洲,可见到8种特征各异的微相。
