Based on these technics the paper makes a deep research on the working process and mechanism of semantic retrieval, and makes the design of semantic information retrieval systems.
然后论文结合这些理论技术深入探讨了语义检索系统的工作流程、机制，完成了语义检索系统的设计。
Using these methods and technics, the time and cost of development of new products can be reduced greatly, which has been proven practical in enterprises.
采用这些方法和工艺路线大大缩短了新产品的开发周期，降低了开发成本，有必要在广大企业中大力推广应用。
The development and utilization of these co-catalyst and catalyst is a way of low investment and quick result, and the appliance of MGD technics can make the olefin content reduce more.
降烯烃助剂和降烯烃催化剂的开发利用是投入少、见效快的方法，而投用MGD工艺，可使汽油烯烃含量下降的更多。
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