To guide the design and operation of emergency ventilation system, intensive study on several key issues of emergency ventilation theory has conducted.
为了指导应急通风系统的设计与运行，本文针对应急通风理论中的若干关键问题进行了较为深入的研究。
How to establish effective marketing strategy to promote and guide people to purchase and consume the bamboo coal product scientifically and reasonably will become our key topic to study.
如何制定有效的营销策略去宣传引导人们科学、合理地购买和消费竹炭制品就成为我们要研究的重点课题。
The result of this study establishes the kinetic model and key control factors in M - 1000 medical class PVC resin process, and provides guide to M - 1000 PVC resin production.
研究结果确定了医用级PVC树脂生产的动力学模型并确定了生产工艺中的关键控制因素。为医用级PVC树脂的生产提供了指导。
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