Kobayashi's drawings are much more fluid, and true to the original 1960s spirit.
小林章绘制的曲线要更为流畅，更忠实的体现了60年代原始版本的精神。
2
In some common textbooks or reference books concerning on polymer rheology, the concept of true viscosity of non-Newtonian fluid is explained unclear, and parts of the calculation results are wrong.
The low density drilling fluid has borehole excavation effect on compensated neutron porosity logging, and by this way apparent porosity is lower than the true value.