The mechanics on the phase transfer could be explained clearer and deeper by combining material micro structure, micro mechanics of phase transform and macro thermodynamic theory.
将宏观的热力学理论与微观的物质结构及相变的微观机理结合起来，能较好地阐明该相变机理。
2
A "theory of micro element" and equivalent seepage flow was raised to solve the various mass flow of single phase in the horizontal wellbore.
A binary Fresnel lens with 8 phase steps can be manufactured with micro-optical element fabricating technology and three times of alignment according to Fresnel diffraction theory.