Guided by th e overall thinking and years practice which bring about sound clinical and soc ial effects , the author proves that only guided by the theory of medical aesthet ies can the medical cosmetology show its great vitality really , and only in prac tice can it be enriched and developed constantly 证明了美容医学必须在医学美学理论的指导下，才能真正显示学科的生命力，而医学美学也只有在美容医学的实践中才能不断的丰富与发展。
2.
This machine is comparatively effective in cut - ting and suitable for cutting various kinds of paper . card - board , wood - based plywood , rubber , plastics and similar materials . it is an indispensible cutting machine for print - ing houses , carton and cardboard box works and manufacturers making product of rubber , plas - tice and synthetic leather 本机具有较高的裁切效能，适用于裁切各种纸张纸板木质人造板以及橡胶塑料等类似的材料，因而是印刷厂纸盒纸箱厂以及橡胶塑料人造革复制品等有关工厂所必须的裁切机械。
