上层水温暖而浓度小，下层水寒冷而浓度大，因此水体难以混合。
With warm, buoyant water on top and cold, dense water below, the water column doesn't mix easily.
此外，温暖的上层水没有冷水中的营养物质，因此，大量的海洋生物就会到更深入的海水中生活了。
Furthermore, warmer upper layers of water stifle the process that brings nutrients up from colder, deeper parts of the ocean to feed a wide range of surface-dwelling Marine wildlife.
经过新奥尔良设备处理的邮件被转移到上层，这样可以避免水对邮件造成损坏。
Mail that was already processed in New Orleans facilities was moved to an upper floor so it would be protected from water damage.
当水被抽出来时，剩余的空间被上层的泥土填满压实。
As the water is pumped out, the vacant space left is compacted by the weight of the earth above.
画面显示幸存者在被水围困的家中，在居民楼的上层楼面，挥舞着白色床单。
The images showed survivors in a home surrounded by water, waving white sheets from the upper floors of buildings.
据《先锋报》报道，调查人员分别在（受害者）卧室的地板上和厨房上层储物架顶部发现了一把溅满血迹的往复式电锯和一把看似刚被冲洗过、水迹未干的短柄斧。
Investigators found a bloody reciprocating saw on the bedroom floor and a hatchet which was still wet seemingly fresh from a wash atop an upper shelf in the kitchen according to The Herald.
当水在上层大气中凝固，会形成细微的，扁平的，六面体形状的冰晶。
As water freezes in the upper atmosphere, small, flat, six-sided, ice crystals might be formed.
这一水分含量堪比地球的上层地幔500到1000ppm的水含量。
These levels are comparable to the 500 to 1000 parts per million of water in the Earth's upper mantle.
上层时代运用植物造就多种主题空间，我们不仅让您享受到充分的水、空气、还有阳光，保持对自然的亲和力，而且更强调邻里间的互动和情感上的交融。
We let you enjoy to the full water, the air, also have the sunlight, maintains to the natural distance, emphasizes between the neighbor in the emotion exchange.
一般地说，在博古架陈设观众的视线当然首先向上层的石，因此在这里希望把作为水石最优秀且格调高的赏石摆设。
Generally speaking, in the Shelf furnishings of course, the audience's attention first to the top of the stone, so here hopes to function as a stone of the best high-Shang shi and style furnishings.
减小井间距，增加上层滞水和潜水的入流通道，尤其要在潜水含水层底板低洼处设置降水井将低洼处的残留水引走。
Minish the well space and increase transflux routeways upper backwater and driving, especially setup precipitation well and drain residual water at the bottom of diving layer.
含水层有三种形态，分别是上层滞水、潜水和承压水。
There are three types of aquifers: perched, unconfined, and confined.
水和油同置于“油”碗里，并呈现出分明的两层。但是随着展出时间的变长，我们不难发现水被上层的油浸染。
The oil bowl contains both water and oil, which appear as clearly separated substances only for a few days and as the show progresses we see that the water gets contaminated by the oil.
水和油同置于“油”碗里，并呈现出分明的两层。但是随着展出时间的变长，我们不难发现水被上层的油浸染。
The oil bowl contains both water and oil, which appear as clearly separated substances only for a few days and as the show progresses we see that the water gets contaminated by the oil.
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