If waters are not well flushed and sufficiently deep, feeding the caged fish can lead to excessive accumulation of nutrients and wastes, which endangers the balance necessary to sustain wild populations.

如果水域流动性不好，也不够深，那么鱼笼养鱼会导致营养物和垃圾，危害维持野生种群可持续所需平衡。

A team of scientists says acoustic enrichment may be able to help revitalize dead coral like what's found in some parts of the Great Barrier Reef but what is acoustic enrichment.

科学家说，声量也许能够使死珊瑚（大堡礁范围内有很多死珊瑚）恢复活力，但是什么是声量呢。

These elements aren't actually rare, they're just rarely found in high concentrations.

稀土元素本身储量并不稀少，只是很难形成高浓度状态。

It is important to find the right chemicals that can bind and enrich the CO2.

重要是要找到合适化学物合和二氧化碳。

The seam is one of the densest on the planet.

此处黄金度堪称世界最。

The researchers also found that the enrichment of the peptidase in the host's body will significantly reduce the clinical efficacy of Sitagliptin, a commonly used diabetes treatment medication, as Sitagliptin cannot inhibit the activity of DPP4 effectively.

研究人员还发现，宿主体内肽酶会显著降低常用糖尿病治疗药物西格列汀临床疗效，因为西格列汀不能有效抑制 DPP4 活性。

If we look at where the teeth are found, they tend to be found in coastal areas where you had very rich nutrient sources to produce a very complex food web.

要是我们看一下牙齿被找到地方，它们往往是在海岸附近被找到，那里有非常养分形成了非常复杂食物网。

These findings show that plastic nanoparticles can move up the food chain — and interfere with the natural function of an ecosystem.

这些发现表明塑料纳米颗粒可以沿着食物链向上，扰乱生态系统功能。

Cheap fossil energy, concentrated by geologic time and pressure in seams of coal or pools of oil, changed all that.

经过地时间和压力凝缩，于煤层和油田中廉价化石能源改变了这一切。

Mines and irrigation ponds can be kept from becoming contaminated by planting hyper accumulating species in targeted areas.

通过在特定区域种植植物，矿井和灌溉水池可预防污染。

It's underwater loudspeakers and the music they play includes the sounds of healthy reefs.

声量是指水下扬声器，它们会播放健康珊瑚礁发出声音。

But here, the pit's chemistry has already done part of the work.

而这座矿坑内化学反应，已经完成了前期工作。

One particular little layer though, however, showed a whopping increase in the concentration of the metal Iridium.

但其中有一小层却表现出金属铱高度。

Even more evidence of the bear's range was unearthed in California's La Brea Tar Pits, one of the richest sources of prehistoric bones in North America.

这种熊分布范围更多证据在加州拉布雷亚沥青坑被找到，那里是北美史前骨骼最处一。

There might be hot spots here where there's really rich deposits that you want to focus your attention on?

这里是否存在稀土含量极高、值得重点勘探区域？

Near the town of Price in Utah, paleontologists have uncovered one of the richest fossil beds of North America.

在犹他州普莱斯镇附近考古学家们发现了北美化石最地点一。

Along with the high levels of Iridium, they found something even more fascinating - shocked-quartz.

除了高度铱以外，他们还发现了更为奇妙东西——冲击石英。

This is called an enrichment cultivation in microbiology.

马拉 vin：这在微生物学中叫做培养。

You don't have enough enrichment too far in.

你尚未在足够深入阶段实现充分元素。

From this enriched  medium, the subsequent generation of stars, called population II stars formed.

在这种介中，后续一代恒星——被称为第二代恒星（Population II stars）——得以形成。