The polymer was a chemical product that formed the basis for Kevlar.
这种聚合物是一种形成凯拉夫尔主要成分的化学产品。
Yet the overall benefit depends on how long the polymer film lasts.
不过总的收益取决于这种高分子膜的耐用程度。
The alcohol gel then evaporates in seconds leaving the polymer behind.
酒精凝胶在数秒内消失,只留下聚合物。
When a current is passed between these electrodes, the polymer gives off light.
当电流通过两个电极时高分子材料便会发光。
In initial tests, they will focus on breaking down the polymer into its constituents.
在最初的测试中,他们致力于把聚合物分解成其成分。
More than one million metric tons of the polymer is made in the U.S. alone each year.
在美国每一年要使用超过100万公吨的这种聚合物。
Once in the polymer, the electrolyte stays there until a newly applied voltage coaxes it out.
一旦电解液被聚合物吸入,那这些液体就得待在里面,直到新输入的电压把它们给排出去。
When the light is switched off the polymer resolidifies, leaving the surface as good as new.
只需要把紫外线关掉,聚合物又能重新聚合,材料表面又恢复如新了。
That is, the polymer must stick to the barrel more than it does to the screw to move forward.
也就是说,聚合物必需粘着于机筒而不是螺杆才能向前移动。
The polymer that we use is actually the same type of polymer that's used in degradable sutures.
这里我们用的高分子实际上和用于可降解缝合线的高分子是同一种。
As the polymer contracts in one direction, it expands in another, and these movements can do useful work.
当聚合物往某一方向收缩时,则会往另一方向膨胀,这种运动很有用处。
Typically, in an active microbial environment the polymer becomes invisible to the naked eye within 12 weeks.
通常,在一个活跃的微生物环境的聚合物成为看不见的12个星期内肉眼。
From this information they calculated the improvement in stiffness the graphene gave to the polymer composite.
通过这些信息他们可以计算出加入石墨烯后高分子复合材料的刚度改进。
At body temperature, the polymer-water bonds weaken, and the polymer molecules prefer to bond with each other.
体温下聚合物和水之间的化学键变弱,聚合物分子彼此更易于成键。
Wherever the light falls on the polymer it causes it to solidify, binding the particles in the slurry together.
紫外线所照射到的区域,该区域的聚合物便会凝固,并将陶浆中的颗粒粘合在一起。
When the polymer forms a condensed, well-defined layer closely surrounding the cell, it is called the capsule.
当这些紧紧围绕细菌的的多聚体形成浓集,边界明显的一层时称为荚膜。
But when they are zapped with a beam of electrons from a particle accelerator, the polymer chains are desaturated.
但是,当它们经过粒子加速器发射的电子束扫描后,聚合分子链被去饱和。
Such polymers are actually synthesised by microbes, with the polymer accumulating in the microbes' cells during growth.
其实这种聚合物合成微生物,微生物与在'细胞的生长发育过程中积累聚合物。
This suggests that the self-stiffening is not the result of chemical changes in the polymer, which can usually be undone by heat.
这说明材料强度提高并不是聚合物发生化学反应造成的,一般这种变化在加热状态下是可逆的。
Mixing the polymer with commercially available carbon nanotubes in a solvent separates semiconducting tubes from conducting tubes.
把这种聚合物和碳纳米管在一种溶剂中混合,可以将半导体管和导体管分离开。
For example, some configurations might bring neighboring regions of the polymer into proximity where they could hydrogen bond.
比如说,某些构型会使得某些部位接近,聚合物上的,从而产生氢键。
The results indicate that the polymerization mechanism is coordination polymerization and the polymer has stereospecific structure.
结果表明,聚合体系符合配位聚合的机理,聚合物结构具有一定的有序性。
America's Food and Drug Administration has already approved both the polymer the implant is made from and the active agents it USES.
美国食品药品管理局已经核准了组成该植入物的聚合体和该植入物所用的活性因子。
The process does endow the polymer to conduct heat in only one direction, however, unlike metals which conduct equally well in all directions.
与热量在金属材料中可以向各个方向传导有所不同,这种制程能够令热量在这些聚合物中只沿着某一个方向传导。
If you then take the petroleum feedstock and convert it very efficiently into the polymer, it can have a very low environmental footprint.
假如你到时能将得到的石油原料高效地转成高聚物,那么其只会具有非常低的环境足迹。
The result is a set of synthetic metabolic pathways-ones that do not exist in nature-which turn the polymer out in satisfyingly large quantities.
结果,我们就有了一套合成代谢的“小捷径”(它们现实中并不存在),从而大量产出理想的聚合物。
"Depending on how complicated you want the polymer sequence to be, there are an infinite number of combinations you could make," said Chilkoti.
齐库提说:“不论聚合体序列有多么复杂,你都可以制造出相应的结合体,想要多少就有多少。”
"Depending on how complicated you want the polymer sequence to be, there are an infinite number of combinations you could make," said Chilkoti.
齐库提说:“不论聚合体序列有多么复杂,你都可以制造出相应的结合体,想要多少就有多少。”
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