浮心(center of buoyancy)是指浮体或潜体水下部分体积的形心。当浮体方位在铅直面内发生偏转时，其水下部分的体积虽保持不变，但其形状却发生变化，因而浮心的位置也相应地移动。浮心和重心的相对位置对于判断浮体是否为稳定平衡有重要意义。
本文讨论了赛艇、皮划艇的排水量、湿水面积、浮心的纵向位置等浮态参数的计算和应用。
The calculation and usage of some float status indexes about canoe, as well as the influence to the canoe resistance function of these indexes were discussed in the paper.
讨论了精密气浮轴系、驱动电机、装夹调心装置等关键部件的设计问题及测量系统的工作原理。
The measuring principle and some design problems of key techniques, including precision air - bearing, driven motor, fixture and aligning devices were discussed.
湿化作用不足以抵消浮托力对坝壳的上抬影响，坝壳下沉是由心墙渗透体积力引起的。
What is more, because wetting effect cannot offset the lifting deformation, the sink of the shell is caused by seepage body force.
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