The key stratum is not easy to cave, but once it is caved, there will be a sudden collapse of a rather thick stratum.
关键层较难崩落，但在崩落时具有突发性，会产生较大厚度岩层的突然垮塌。
Researchers are working on ways to make thinner solar cells, on the order of hundreds of nanometers thick rather than micrometers, with the same performance, to lower manufacturing costs.
研究者正想办法制造更薄的太阳能电池，这样的想法要的是几百纳米而不是微米，要同样的作用，以减少制作成本。
First, he found dinosaur nests that had been built between lava flows 10-15 metres thick-evidence that the animals were coping well with the volcanic activity rather than being weakened by it.
首先，他在10至15米厚的熔岩流中发现了恐龙巢穴，这证明当时的动物很好地应对了火山活动，而不是遭到了打击。
Monsters have thick hides and not too many things hurt our feelings, though I would like to share with you one particular day when I did feel rather unhappy.
怪兽的脸皮本来就厚，才没那么容易伤自尊呢，不过我要跟你说说那一天的事儿，我是真的生气了。
Sceptics may feel this is a learning disability too far — another chance for middle-class parents to classify little Johnny as different, rather than thick.
对此持怀疑态度的人认为这只是一种学习障碍，对于中产阶级家长来说如此将自己的孩子归为异类显得有些言过其实，更不用说是归为一种疾病了。
There was a kind of track running through it and he had not followed this for many minutes when he heard a thick and rather wheezy voice saying to him.
有一条踏出来的小路贯穿树林，他沿着这小路走了没有几分钟，就听到一个沙哑而呼哧呼哧的声音同他说话。
If necessary, a thick towel can be used to pick up a a stubborn hedgehog at first, rather than gloves.
如果需要，你可以使用毛巾帮助你把警惕的刺猬包起来，千万不要用手套。
The planet appears to be rather hot and surrounded by a thick atmosphere, which makes it inhospitable for life as we know it on Earth.
但是这颗行星的表面似乎温度很高，被浓厚的大气层所覆盖，按照我们对地球上生命的认识，这使得它不太适合生命居住。
I'd rather bathe in a southern sea than wear thick clothes as northerners do.
我宁愿整日泡在南方的海水里，也不愿像北方人一样，穿着厚厚的衣服。
It appears to be rather hot and surrounded by a thick atmosphere, which makes it inhospitable for life as we know it on Earth.
但是这颗行星的表面似乎温度很高，被浓厚的大气层所覆盖，按照我们对地球上生命的认识，这使得它不太适合生命居住。
It appears to be rather hot and surrounded by a thick atmosphere, which makes it inhospitable for life as we know it on Earth.
但是这颗行星的表面似乎温度很高，被浓厚的大气层所覆盖，按照我们对地球上生命的认识，这使得它不太适合生命居住。
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