这种太阳能电池通常用塑料聚合物提供保护支撑体,也就是所谓的backsheets。
Such photovoltaic cells rely on conventional plastic polymers to provide a protective backing, also known as backsheets.
综述了由增强性的热致液晶高聚物和热塑料聚合物基体组成的原位复合材料及其制备、构和性能。
In-situ composites, consisting of reinforcing thermotropic liquid crystal polymers and thermoplastic matrix, are reviewed together with their preparation, structure and properties.
然而塑料软包装材料主体结构是塑料聚合物,对气体有一定的渗透性,因此并不能完全代替金属、玻璃包装。
However, the main structure of plastic flexible packaging materials are plastic polymers, has some permeability to gas, and therefore can not fully replace the metal and glass packaging.
Now let's say that we're into polymers. We know what plastic is.
现在假设我们知道聚合物,我们就知道塑料是什么。
We're familiar with polymers, plastics in our daily life; the chairs that you're sitting on are made of a kind of a plastic polymer that is basically an organic chemical that is cross-linked together.
我们应该很熟悉聚合物,比如日常生活中的塑料就是,你们坐的椅子,就是由一种塑料聚合物构成,它由基本的有机化学物质交联在一起
Things like steel and polymers, or plastics, and ceramics, and of course computers which has progressed remarkably due to the work of engineers in your lifetime, until now you can carry around a cell phone, which would have been unthinkable even 30 years ago.
包括钢铁,聚合物,塑料,陶瓷,当然,计算机这个在你们的有生之年,已经取得令人瞩目的进展的发明,也得归功于工程师的工作,现在你们的手机能随身携带,而这在三十年前是不可想象的
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