The valley had a wide flat floor.

个山谷底部是一片宽阔平地。

These fossils were deposited in a river system.

些化石堆积在一个河流底部淤泥中。

There were also photovoltaic tiles fixed to the top and bottom of this sloping wall.

斜壁顶部和底部还装有光电瓷砖。

At the bottom, she attached the thread.

在吐丝管底部，吐出丝。

A plastron is the underside of a tortoise or turtle's shell.

海龟底部有龟甲。

The bottom had dropped out of the trail.

里面有雪道底部融化征兆。

Curators found the cup has a false bottom which rusted away over time.

工作人员在陶瓷杯底部发现了生锈夹层。

This is the ocean floor. But this isn't rock sprouting out at the bottom.

就是大洋底。但是它形成却不是因为底部地壳挤压。

High levels of uric acid can also cause gouty arthritis, most commonly in the first metatarsal joint which is the base of the big toe.

高尿酸会导致痛风性关节炎，最常发生于第一跖骨关节即拇趾基底部。

The water drops a total of 740 meters from the top of the upper fall to the base of the lower fall.

水从上瀑布顶部到下瀑布底部总共下降了740米。

In Arizona, in the lower part of the Grand Canyon, there is a system of Havasu waterfalls, the waters of which fall into the basin of natural origin.

在亚利桑那州大峡谷底部，有一个哈瓦苏瀑布系统，瀑布水流落入天然流域。

It shows the base of the jet of hot plasma, the light around the darkness of a black hole from hot plasma falling into it, and the central dark area.

它显示了热等离子体喷流底部、热等离子体所坠入黑洞阴影光线，以及中心暗区。

You'll see three main controls on the left at the bottom of the heater.

你会看到加热器底部左面有3个主要控制装置。

The only cells it really infects are what we call respiratory epithelial cells, a one-cell layer of cells that kind of protect the breathing tubes and the lungs, all the way down to the bottom, where we have air sacs.

唯一真正受到感染细胞是我们所说呼吸上皮细胞，一种保护呼吸管和肺单细胞层，一直到管道底部有气囊地方。

The floor's about 20 by 30, And you're at the long end.

场地大概20到30码，你在场地底部。

You connect them via their studs, and they look nice.

它们可以通过顶部凸起和底部孔洞连接，而且外观也很美观。

We've released ballast weight on the bottom to -- to spring us off the bottom and head for the surface and so it's about a three and a half hour ride up.

我们释放底部压载物，样我们就从底部弹起，冲上水面，所以大约需要3个半小时回到水面。

It's very effective in catching large amounts of popular seafood from crab and shrimp to flounder and whiting, and improvements in the methods and nets used has reduced the environmental problems that bottom trawling can cause.

它能有效地捕获大量常见海产品，从螃蟹、虾到比目鱼和鳕鱼，而且在网使用及方法方面已经减少了底部拖网可能造成环境问题。

Initially the holy grail is to get to the bottom of the planet.

最初目标是到达地球底部。

Take another empty plastic bag and loop it through the handles of the first bag, and then stuff the bottom of the second bag and the handles of the first bag into the container.

取另一种塑料袋，将其穿过前一只塑料袋把手空圈处，然后将后一只塑料袋底部与前一只塑料袋把手一同塞入。