涂铅复印法显现检验压痕字迹，其特点是经济、实用、快捷，显现效果较好，对基层技术点有一定的指导作用。
Duplication applying lead in verifying and revealing pressing handwriting has the characteristics of being economical, practical, quick and good in effect.
大部分女性都知道鸡蛋有美容养颜的作用，但只知其好而不知其法。
Most women know that there is beauty beauty eggs, but only know its not good law.
用解析方法计算了受静水外压载荷作用的有环壳过渡段的锥—柱组合壳中的应力值，并用瑞利法计算了其失稳临界载荷。
Stresses in cone cylinder shells with toroidal transition inserted are investigated by an analytical method, and buckling pressures for the shells are presented by Rayleigh Ritzs method.
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