然后，根据波浪中重力与浮力平衡、纵倾力矩之和为零这两个条件来求取横摇稳性力臂值。
Finally, the values of roll stability, in accordance with the condition of the balance between gravity and buoyancy of ship in waves and also with that the sum of trim moments is zero are obtained.
本文就质点系平衡问题进行了一般性的推证，给出了当约束是理想、线性定常约束时的质点系平衡的充要条件。
The general inference and demonstration of the equilibrium problem of particle system are carried on, the full and necessary conditions are given while the constraint is ideal, linear and scleronomic.
所有力必须满足平衡条件并产生与结构连续性与支承条件相协调的变形。
The forces must satisfy the conditions of equilibrium and produce deformations compatible with the continuity of structure and the support conditions.
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