The blanket thickness is calculated byEquation (25).
铺盖的厚度按(25)式计算。
2
Byequation we mean a mathematical expression in which the two sides balance.
所谓方程式，是指两边相等的数学式。
3
Design of flutter model from aircraft metal structure to composite structure can be achieved byequation of stiffness, yet it may cost much time for general design method.