Participates in the design and development of new polymer product, manufacturing methods, constructions, and materials for lift roller or other products.
参与电梯滚轮或其它塑胶新产品的相关制造方法、产品构造和材料的设计与开发。
The fourth part is mainly on the tourism products system, the function district, the spatial layout and six essential factors of the destination locate constructions.
第四部分主要就目的地建设中的旅游产品体系、功能分区和空间布局及六大要素建设做了一定研究；
As a matter of fact, I know nothing about the constructions of the information products.
其实我对这些信息产品的构造一无所知。
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