Unfortunately, the polyurethane foam he used is inherently unstable.

不幸的是，使用的聚氨酯泡沫天生不稳定。

One is either cheese or polyurethane.

要么是奶酪，要么是聚氨酯泡沫。

For starters, the heel, insole, midsole, and upper layer are usually made from synthetic textiles like polyester, nylon, latex, and polyurethane.

首先，鞋跟、鞋垫、鞋底夹层和鞋面通常由合成纺织品制成，像聚酯、尼龙、乳胶和聚氨酯。

Unfortunately, due to its widespread use, more than a million tons of polyurethane waste end up in U.S. landfills each year.

不幸的是，由于聚氨酯的广泛使用，每年有超过100万吨的聚氨酯废料最终被丢弃在美国垃圾填埋场。

Polyurethane foam sealant was used during construction at the first floor underground, releasing flammable gases that accumulated to reach combustible conditions.

地下一层施工作业中使用聚氨酯泡沫填，释放易燃气体局部积聚达到可燃条件。

Some other polymers like polyurethane or Bakelite are thermoset.

其一些聚合物如聚氨酯或电木是热固性的。

These include 3.9 inches of extruded polystyrene foam and 5.9 inches of spray polyurethane foam.

这包括3.9英寸的挤塑聚苯乙烯泡沫和5.9英寸的喷涂聚氨酯泡沫。

It's actually the spray foam insulation I talked about, polyurethane foam.

实际上就是我提到的喷涂泡沫保温材料，聚氨酯泡沫。

And indeed, polyethylene, polyurethane, these plastic materials were developed because they were very durable.

事实上，聚乙烯、聚氨酯等塑料材料之所以被研发出来，是因为它们具有极高的耐用性。

It's not that easy to recycle polyurethane.

回收聚氨酯并不容易。

So, part of the house is insulated with extrusion polystyrene foam and part with polyurethane foam which is right here on the wall.

所以，房子的一部分使用挤塑聚苯乙烯泡沫保温，另一部分则使用喷涂聚氨酯泡沫保温，这里就在墙上。

Someone says a suit of plastic wheels is polyurethane, but when roller man's out for a spin he might look comical but knows how to book it.

有人说这套塑料轮子是聚氨酯做的，当轮滑达人出去转圈兜风，可能看起来很滑稽，但知道怎么定制这套轮子。

Designed by Shift Robotics, an offshoot of Carnegie Mellon University, Moonwalkers consist of a 300W brushless motor in each 4.2-lb (1.9-kg) shoe that powers eight polyurethane wheels.

“月球漫步者”由美国卡耐基梅隆大学下属的Shift Robotics公司设计，每双重量为1。9千克的鞋中包含一个300瓦的无刷电机，为8个聚氨酯轮子提供动力。

Polyurethane binders are combined with gravel or stones to create a surface with similar properties to concrete or tar, but with tiny cavities that let water through.

聚氨酯粘合与砾石或石头结合在一起，形成一种与混凝土或焦油具有相似特性的表面，但具有让水通过的微小空腔。

He and his team therefore set out to tweak the molecules that make up polyurethane to make it easier for it to be converted into other useful materials.

因此，和的团队着手调整构成聚氨酯的分子，使其更容易转化为其有用的材料。

It is made from a blend of crushed rock, rubber and polyurethane, a synthetic plastic that replaces bitumen as the binding agent and allows even bigger pores in the road surface.

它由碎石、橡胶和聚氨酯制成，人造塑胶聚氨酯可以代替沥青，因为这种粘合可以允许更大的气孔存在于路面。

In the particular process recently presented by Zimmerman's grad student Ephraim Morado at the national meeting of the American Chemical Society in San Diego, the new polyurethanes behave like superglue.

在齐默尔曼的研究生Ephraim Morado最近在圣地亚哥举行的美国化学学会全国会议上提出的特定过程中， 新聚氨酯的行为就像强力胶一样。

Now most of these farms are hydroponic or aeroponic systems, which means that instead of using soil, they use a substitute material like polyurethane sponges, biodegradable peat moss and even use inorganic materials like perlite and clay pellets.

现在这些农场大多采用水培或气培系统，这意味着它们不使用土壤， 而是使用替代材料，如聚氨酯海绵、可生物降解的泥炭藓， 甚至使用无机材料如珍珠岩和陶粒。

And because he flew in at the end, put a polyurethane cheese head on top of himself and bounced around a stage in Green Bay, he basically made himself the center of discussion for the last 120 hours of the race.

因为最后刻飞来， 在自己头上戴了一个聚氨酯奶酪头饰， 在格林贝的舞台上蹦跶，基本上让自己成为了最后120小竞选讨论的焦点。

Now, the hottest foam on the market right now is Polyether Block Amide or PEBAX, but this uses thermoplastic  polyurethane, which is a little bit stiffer, a little bit heavier, but a whole lot cheaper.

目前市场上最热门的泡沫材料是聚醚嵌段酰胺或PEBAX，但它使用的是热塑性聚氨酯，这种材料稍微硬一些， 重一些，但便宜得多。