The invention relates to an iron thermal analog test material quantity control method in the field of iron researching technology.
本发明涉及钢种的研发技术领域，特指一种钢种热模拟试验材质控制方法。
For instance , you only need to control the quantity and price of material to control the whole working process, but it is waste a lot of time to approve o every chain one by one.
比如说，你只需要控制请购的数量和材料的价格，就可以完全控制整个流程的进行，但是每一个环节都需要层层审核，这样非常浪费时间。
The uses of barium sulphate precipitated, the specification of the original material, the principle of production, process control point, product quantity are introduced.
介绍了硫酸钡的用途、原材料规格、生产原理、工业生产中主要工艺控制点、 产品质量。
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