In the underground maze of tunnels, the Romans kept "every type of exotic animal that they were able to bring here," including rhinos and snakes, Nazzaro said.
地下的隧道迷宫里，罗马人保留着“他们能够带来的各种类型的外来动物”，包括犀牛和蛇，纳扎罗说。
It is important that this underground room be kept dark. Light can cause potatoes to develop a poison called solanine.
但保持这个地下室阴暗是非常重要的，因为光会导致马铃薯产生一种茄碱的毒素。
Hot air is drawn into the underground canal, where the water is kept cool because it is so far beneath the surface.
热空气被牵引至地下管道，那里的水因为远离地表而总是很凉。
They lived underground, where they kept machines running so that Eloi would be happy and well fed.
他们住在地下，让机器保持运转，这样艾洛伊人就会很开心，被喂养的很好。
In the course of extensive researches it was found that water stored underground kept its temperature well.
在广泛研究的过程中发现储存在地下的水能很好地保持着它的温度。
The interferometer in Japan is being built underground and will be kept at extremely low temperatures to minimise stray vibrations. There are also plans to refine existing experiments.
而日本的激光干涉管直接修建在地下并维持极低的温度，以降低散射带来的波动。
Tip: Edition 12 is only applicable to road transportation and forbidden to work underground and in the stalls; the overall weight shall be kept below 41 tons.
提示：12版只适用于公路运输，禁止这类车辆下工地、矿坑；总重控制在41吨以下。
Not only is the cave storage required to be in the integral rock, but be kept forever below the underground water level, making use of the difference of...
它既要求洞库位于完整性好的岩体中，且又永远处于地下水位以下，利用油水比重差防止气体外逸，从而达到储油的目的。
Not only is the cave storage required to be in the integral rock, but be kept forever below the underground water level, making use of the difference of...
它既要求洞库位于完整性好的岩体中，且又永远处于地下水位以下，利用油水比重差防止气体外逸，从而达到储油的目的。
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