Alloy: Metallic substance composed of two or more elements, as either a mixture, compound, or solid solution.
合金：由两种或多种元素组成的金属材料，以化合物或固溶体形式存在。
On the basis of the surface thermodynamic theory and the law of corresponding states, the calculating formula is set up about surface tension of molten metallic substance.
根据表面热力学理论和对比态原理，建立一个金属熔体表面张力+的计算公式，对五种碱金属熔体高温下表面张力进行了计算，结果与实验数据非常吻合。
It is mainly used in the thickness measurement of nonmetal coating mantled on metallic substance. At the same time the sensor can meet the high precision non-contact request in industrial measurement.
并且能够满足工业自动检测中高精度和非接触测量要求，同时测量范围和精度可随不同的应用要求而进行大范围的调整。
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