不稳定平衡unstable equilibrium详细»
不稳定平衡〔名词〕unstable equilibrium详细»
不稳定平衡unstable balance;unstable equilibrium详细»
不稳定平衡unstable equilibrium详细»
不稳定平衡unstable balance;unstable equilibium详细»
不稳定平衡instable equilibrium;labile equilibrium;unstable equilibrium;unstable equlibrium详细»