New catalysts suitable for hydrogenation of food oils have been prepared by means of precipitation method and by chemical mixing procedure.

研究了用沉淀法和化学混合法制备的用于食用油脂加氢改性的镍催化剂。

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In production process, be sure to avoid mixing different product types and models in strict accordance with the product Identification and Traceability Control Procedure.

生产过程中防止不同规格、型号的产品混淆，严格按《产品标识和可追溯性控制程序》执行。

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As the key working procedure in concrete production, mixing quality and productivity are affect seriously by mixing mode.

搅拌是混凝土生产工艺中的关键工序，直接关系到预拌混凝土生产的质量和效率。

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