This paper narrates the preparation of environment friendly alkyd antirust coatings with ferrotitanium complex antirust pigment. 叙述以复合铁钛防锈颜料,开发环保型醇酸防锈涂料的研制过程.
The quality of freeway structure retailing backwall refilling concerns the freeway global quality.高速公路构造物台背回填质量关系到高速公路整体质量.Lack of water perpetuates poverty, increases the risk of political instability, and affects globa...
冻伤是危险的,一般发生在皮肤长期暴露在极冷的环境.Frostbite is damage that happens when skin is exposed to extreme cold for too long.毛猛犸(长毛象)就生活在西伯利亚极冷的环境下.For example the hardy woolly mammoths lived in the extreme cold of Siberia....