The requirements for selecting qualified alternative processes were presented.
提出了选择合适镀硬铬替代工艺的要求。
Therefore, alternative processes for the production of natural vanillin should be studied.
这促使研究人员寻找生产天然香草醛的替代方法。
Relevant alternative processes were discussed on the basis of atom utilization, Efactor and environmental coefficient.
全面分析了原子利用率、E -因子和环境系数，并利用它们作为化工过程新的评价指标。
Form and dimension may also be achieved by a number of alternative processes such as hot or cold extrusion, sand casting, die casting, and precision casting.
形式和尺寸也可以通过其它一些可选工艺来达到，比如热挤出或冷挤出加工，沙模铸造，拉模铸造，或精密铸造。
Form and dimension may also be achieved by a number of alternative processes such as hot or cold extrusion, sand casting, die casting, and precision casting.
形式和尺寸也可以通过其它一些可选工艺来达到，比如热挤出或冷挤出加工，沙模铸造，拉模铸造，或精密铸造。
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