英文: By building up tumor growth aerodynamic model, when tumor growth aerodynamic laws is research to find: The process of tunor increasing squares with economic growth of Gompertz growth parabola
description; we further study that Gompertz growth parabola
中文: 摘要通过建立肿瘤增长动力学模型，研究肿瘤增长动态规律时发现：肿瘤增长的全过程与龚珀兹增长曲线描述的经济增长过程完全相符；进一步给出了龚珀兹增长曲线与描述种群的增长与调节的逻辑斯蒂增长曲线完全相似。 更详细...
英文: In the 3 soil textures the dynamic change of rhizosphere microorganisms and enzyme activities both turned on a parabola
with the peak in the silking stage, and then reducing gradually.
英文: It comes to a conclusion that the combined parabola
acceleration is the optimum one to limit dynamic tension and elastic vibration of large belt conveyors during starting.
英文: The curve of life is like the parabola
of a projectile which, disturbed from its initial state of rest, rises and then returns to a state of repose.
英文: The result of the study shows that the stress in soil nails along the length direction display parabola
distribution, and the actual pull force in soil nails about half of the value is gained by theoretical calculation.