这类材料由具有加热软化、冷却硬化甚至可重复循环能力的聚合物组成。

This class of materials consists of polymers which always remain capable of being softened by heat and of hardening on cooling, even after repeated cycling.

youdao

为了提高其准确度和重复性，该装置被附带一个外部的反侧隙聚甲醛(聚合物)小齿轮，该齿轮可优化风力涡轮机的大偏航从动齿轮。

For increased accuracy and repeatability, the unit can be supplied with an external anti-backlash POM (polymer) pinion gear which optimizes coupling to the wind turbine's large yaw bull gear.

youdao

聚合物具有一般是基于碳链的重复结构。

A polymer has a repeating structure, usually based on a carbon backbone.

youdao

A polymer is just a large molecule that's made up of repeated units.

聚合物就是由,重复单位构成的大分子

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