熟悉金属机械加工的基本原理与方法，具备机械加工工艺基础知识。
Be familiar with basic principles and methods of metal machining and equip with basis of knowledge of machining process.
通过以上的研究，基本确定了番茄红素含量的检测方法、番茄皮中番茄红素的提取工艺以及原料的储存方法。
The above study has essentially determined the extraction process of lycopene from tomato skin, test method of lycopene content as well as storage method of raw material.
介绍了聚四氟乙烯分散树脂的管材、电线包覆和带材加工成型的基本原理、方法、工艺及设备。
Basic principles, methods, processes and equipments for pipe, wire coating and stripe processing and moulding of PTFE dispersion resin are introduced.
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