The properties, structure, preparation process and influence factors to quality of production have been introduced in the article.

对难消化糊精的性状、结构、制备工艺以及影响产品质量的因素进行介绍。

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Combining production practice, analyses that preparation of coking coal influences coking coal quality and production, expounds the roles of preparation coking coal process in coking production.

结合多年的生产实际，分析了炼焦煤的准备在生产中对焦炭质量和生产操作的影响，阐述了备煤工序在炼焦生产中的作用。

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The properties, application, preparation methods and process line of production of acetic acid process are introduced.

本文介绍了乙酰丙酮的性能、用途、制备方法及乙酸法合成乙酰丙酮的工艺路线。

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A350 project manager Didier Evrard said that the preparation for a new automated drilling process took longer than expected, causing production schedules to be delayed by several weeks.

BBC: Airbus delays A350 XWB entry as EADS profits triple