The preparation method of the xanthan gum comprises fermentation step, disinfection step, primary extraction, primary separation, secondary extraction and secondary separation.
本发明的黄原胶的制备方法，包括发酵步骤、消毒步骤、一级萃取、一级分离、二级萃取、二级分离。
Having a secondary Ajax controller (such as a servlet or Web service) forces a stronger separation of your model code.
使用二级ajax控制器(如servlet或Web服务)可以进行更强大的模型代码分离。
The separation of generator design (primary) and protection (secondary) can produce the hidden trouble in safe operation of generator.
发电机设计（一次）与继电保护（二次）工作的分离，存在发电机安全运行的隐患。
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