在开发阶段制定的元件和原材料规格应多加考虑以适用于其使用目的。
Component and raw material specifications developed during the design phase should be well conceived and adequate for their intended purpose.
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。
The uses of barium sulphate precipitated, the specification of the original material, the principle of production, process control point, product quantity are introduced.
用不锈钢为原材料制作的各类不同规格和型号的丝质产品，原产地美国、荷兰、日本，截面一般呈圆形或扁形。
All kinds of different specifications and types of silk products as raw materials for stainless steel, the origin of the United States, Holland, Japan, the general section is round or flat.
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