But the main thing you want to watch out for is color fading and fabric deterioration.

要要小心褪色和织物劣化。

After more than 100 years on the seabed, the Titanic has gradually degraded.

在海底呆100多年后，泰坦尼克号已经逐渐劣化。

It's a huge molecule that causes a lot of pressure inside concrete. And starts degradation of concrete.

“氢氯化钙是一种巨大的分子，会在混凝土内部形成很多压力，使混凝土劣化。”

Another mark against Brutalism had to do with the deterioration of concrete.

反对粗野义的另一个标与混凝土的劣化有关。

20.3Sign faces and their structures shall be maintained without any visible deterioration of the sign or its structure.

20.3标面及其结构应得到维护，不得使标或其结构出现任何明显的劣化。

Over time, microbes feeding off the iron of the ship have formed icicle-shaped " rusticles" and are speeding up the deterioration of the wreck.

随着时间的推移，以船上铁为食的微生物形成冰柱状的“铁锈”，加速沉船的劣化。

So if threads go loose, or the fabric starts to deteriorate, or the color starts fading after a few washes, that is a sign of a lower quality product.

如果次之后，线条松或者纤维劣化，或者褪色，说明衣服质量不好。

Based on an investigation of ground-heaped loads on metro shield tunnels in soft soil areas, Huang analyzed the influence of ground surcharge loading on the mechanical property deterioration of tunnel linings under different thicknesses of soil.

基于对软土地区地铁盾构隧道地面堆载的调查，黄仁勋分析不同厚度土体下地层堆载对隧道衬砌力学性能劣化的影响。

In fact, scientists estimate that the higher bacterial activity on the stern of the ship – largely due to the greater level of damage it endured – is causing it to deteriorate 40 years faster than the bow section.

事实上，科学家们估计，由于舰尾遭受更大程度的破坏，舰尾的细菌活性更高，这使得舰尾的劣化速度比船头快40年。