观看平静水面和潜伏在下面的动物，使我感觉到我像是一个在水面上游泳者，而腿却在水下晃来晃去。
Seeing this view of both the water's placid surface and the creatures lurking below makes me feel like a swimmer at the surface with my legs dangling below.
当静态平衡时，在水面以下，静水压力随深度而增加。
Below the water table at static equilibrium, hydrostatic pressure potential increases with increasing depth.
在水面以下，当静态平衡时，静水压力随深度而增加。
Below the water table at static equilibrium, hydrostatic pressure potential increases with increasing depth.
在考虑水表内反射和水体后向散射的基础上，推导出平静水面下的漫反射率公式。
A diffuse reflectivity formula is set with the internal reflectance in water surface and backscattering of water-body being considered.
最后，作者利用所设计的激光声纳探测系统进行了在空气中实验和消声水池实验，得到了平静水面和有剧烈干扰条件下的测试数据。
Experiments in the air and in an anechoic tank are both carried out lastly, the experimental data in calm water surface condition and violently disturbed water surface condition are acquired.
最后，作者利用所设计的激光声纳探测系统进行了在空气中实验和消声水池实验，得到了平静水面和有剧烈干扰条件下的测试数据。
Experiments in the air and in an anechoic tank are both carried out lastly, the experimental data in calm water surface condition and violently disturbed water surface condition are acquired.
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