According to the geometric character of the plant root systems, application of the L-systemstheories in simulating the plant root systems growth was studied.
根据植物根系生长的几何特征，探讨了L系统理论在植物根系生长模拟中的具体应用。
2
Symbolic dynamical system is a powerful tool in the study of dynamical systemstheories, the study of dynamical properties of the general symbolic dynamical system is a far unsolved problem.
The arid landscape required extensive irrigation systems, and principles of shared labor made sense to people who were inspired by the theories of Karl Marx and Robert Owen.