The physico-mechanical parameters of every stratum have been ascertained by test.
应用试验结果确定各类土层的物理力学参数；
2
Physico-chemical properties and extraction conditions of the red pigment in flowers of Hippeastrum vittatums were studied.
研究了朱顶红花红色素的提取条件和理化性质。
3
The coating of resin can be hard by catalysis at room temperature and its film has excellent physico-mechanical properties and anticorrosive properties.