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- Xenon is extremely rare, which allows scientists to use it to detect and trace nuclear reactions, even those that occurred in primitive meteorites before the solar system came into existence. 氙非常稀有，因此科學(xué)家能利用它來(lái)偵測及追蹤核反應，即使是那些早在太陽(yáng)系形成之前、生在原始隕石中的核反應。
- His art is primitive and provincial. 他的藝術(shù)原始而粗野。
- Primitive people often lived in caves. 原始人常常住在山洞里。
- Primitive peoples deified the sun. 原始部落將太陽(yáng)奉為神。
- They built a primitive shelter out of tree trunks. 他們用一些樹(shù)干建造了一個(gè)簡(jiǎn)陋的棚子。
- Primitive man made tools from sharp stones and animal bones. 原始人用尖石塊和動(dòng)物的骨制造工具。
- A primitive hand-turned grain mill. 手推磨一種原始的手推碾谷磨
- The book is about the mythologies of primitive races. 這本書(shū)是原始民族神話(huà)集。
- Primitive in culture and customs; uncivilized. 野蠻的，未開(kāi)化的文化和習慣原始的; 不文明的
- Small seashells were often used as a primitive kind of money. 小貝殼常被用作簡(jiǎn)單的貨幣。
- Living conditions in the camp were pretty primitive. 營(yíng)地的生活條件甚為原始。
- A stony meteorite that contains no chondrules. 無(wú)球粒隕石
- He will publish his observation on the social life of these primitive tribe. 他將公布他對那些原始部落的社會(huì )生活觀(guān)察所得的資料。
- There's a meteorite that hit the ground near here. 附近有顆流星剛掉下來(lái)
- A piece of flint used as a tool by primitive human beings. 打火石原始人作為工具用的一塊打火石
- ANCIENT METEORITE CRATER IN TARIM BASIN. 塔里木盆地的古隕石坑。
- The constitution of a primitive society is not necessarily simple. 原始社會(huì )的結構并不一定就是簡(jiǎn)單的。
- Living conditions in the village are still quite primitive. 這個(gè)村子的生活條件仍然很原始。
- He discovered an unusual meteorite. 他發(fā)現了一塊奇異的隕石。
- The meteorite might have caused a huge dust cloud. 隕星可引起巨大的塵埃云。
