This criterion is reasonable because it is not expressed in terms of the precessional velocity, but the angular velocity of the permanent rotation.

该判据用永久转动角速度大而不是进动角速度大判别准则,较合理。

Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.

根据换方程与约束方程显含等价性，提出了定常约束与定常系统判据等同表述。

However, the caving maybe happen because of too large transmogrification and rheologic fracture to high crustal stres.

统一流断裂准则，最终形成了诱导条件下节理岩体持续大规模自然崩落判据。