The modified method of mixing selection comes from practice. It gangs 3 breeding methods as self-cross and plant selection and mixing save seeds together, and forms 3 paces in the course of breeding.
实践中形成的改良混合选择法是把自交、单株选择、混合留种三种常规的育种方法有机地结合起来，使之成为育种过程中的3个步骤。
The selection of resins, mixing process, monomer ratio, molecular weight of the resin and film crosslinking density were discussed.
讨论了环氧树脂的选择、混合方式、单体配比、树脂分子量和漆膜交联度等问题。
The mixing process in the industrial acetic acid reactor is analyzed, the impeller selection and calculation of the gas-liquid dispersion mixing are described in this paper.
详细分析了工业合成醋酸反应器中的机械搅拌过程，描述了气液分散搅拌过程中搅拌桨叶的选择和计算。
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