After two decades, 95 percent of the elemental mercury on the surface of a filling had gone through a chemical reaction. It became beta-mercury sulfide, a black-colored solid.
经过了20年的光阴,旧填充物表面有95%的汞元素已经发生了化学反应,它变成了黑辰砂(beta - mercury sulfide),一种黑色的固体。
The fractal theory was introduced into the gas solid catalytic reaction system to describe the influence of the surface irregularity of catalyst on the gas solid catalytic reaction.
利用分形维数定量表征催化剂的形状不规则程度,对其中进行的气-固相催化反应进行了分析计算。
A layer of chemical film can be formed on the surface of solid through chemical reaction. The quality of film is decided by the speed of chemical reaction of film surface.
通过化学反应可以在某些固体表面上形成一层化学薄膜,膜的质量是由成膜时膜表面的化学反应速率决定的。
A layer of chemical film can be formed on the surface of solid through chemical reaction. The quality of film is decided by the speed of chemical reaction of film surface.
通过化学反应可以在某些固体表面上形成一层化学薄膜,膜的质量是由成膜时膜表面的化学反应速率决定的。
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