前寒武纪

[qián hán wǔ jì]

Chinese-English

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Definition:
AllAll,precambrianprecambrian,cryptozoiccryptozoic,PrecambrianPrecambrian,CambrianCambrian,Precambrian PeriodPrecambrian Period
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard
1.
Chemical fossils (e. g. alkanes and porphyrins) are often the only evidence for life in rocks of PRECAMBRIAN age.
化学化石（烷烃和卟啉）是前寒武纪地层中生命存在的唯一证据。
huà xué huà shí ( wán tīng hé bǔ lín ) shì qián hán wǔ jì dì céng zhōng shēng mìng cún zài de wéi yī zhèng jù 。
plb.snnu.edu.cn
2.
The first three eons, which together lasted nearly 4 billion years, are together known as the Precambrian.
前三个时期合起来持续了40亿年，合称为前寒武纪（隐生宙）。
qián sān gè shí qī hé qǐ lái chí xù le sì shí yì nián , hé chēng wèi qián hán wǔ jì ( yǐn shēng zhòu ) 。
article.yeeyan.org
3.
The Bogda Mountain, with Junggar basin on the north and Turpan-Hami basin on the south, is a part of the East Tianshan Mountains.
博格达造山带位于准噶尔和吐鲁番-哈密两个前寒武纪地块之间，是晚古生代的大陆裂谷。
bó gé dá zào shān dài wèi yú zhǔn gá ěr hé tǔ lǔ fān - hā mì liǎng gè qián hán wǔ jì dì kuài zhī jiān , shì wǎn gǔ shēng dài de dà lù liè gǔ 。
www.cagsbulletin.com
4.
with the geological evolution in precambrian , minerogenetic materials and types of mineral deposits obviously varied and increased.
随著中国前寒武纪地史的演化，成矿物质种类和矿床类型具有明显的变化和增多。
suí zhù zhōng guó qián hán wǔ jì de shǐ de yǎn huà , chéng kuàng wù zhì zhǒng lèi hé kuàng chuáng lèi xíng jù yǒu míng xiǎn de biàn huà hé zēng duō 。
www.ichacha.net
5.
There are abundant mineral resources in the Precambrian rock formations, on which the survival and development of mankind depend.
在前寒武纪岩层中蕴藏着丰富的矿藏，为人类的生存和发展提供了大量的有用资源。
zài qián hán wǔ jì yán céng zhōng yùn cáng zhe fēng fù de kuàng cáng , wèi rén lèi de shēng cún hé fā zhǎn tí gōng le dà liàng de yǒu yòng zī yuán 。
www.geojournals.cn
6.
That history began with the origin of the primitive, unicellular aquatic algae of the Precambrian Eon.
最初，前寒武纪出现原始的单细胞水生藻类，除了蓝绿藻和细菌之外。
zuì chū , qián hán wǔ jì chū xiàn yuán shǐ de dān xì bāo shuǐ shēng zǎo lèi , chú le lán lǜ zǎo hé xì jūn zhī wài 。
chinafanyi.com
7.
Precambrian BIF iron ore deposit can be divided into two types, Algoma-type and Lake Superior-type.
前寒武纪条带状含铁建造铁矿床分为阿尔戈马型和苏必利尔湖型两大类。
qián hán wǔ jì tiáo dài zhuàng hán tiě jiàn zào tiě kuàng chuáng fēn wéi ā ěr gē mǎ xíng hé sū bì lì ěr hú xíng liǎng dà lèi 。
oldweb.cqvip.com
8.
The Mashan group and Heilongjiang group are major components of the base of Precambrian Jiamusi block.
麻山群和黑龙江群是佳木斯地块前寒武纪基底的重要组成。
má shān qún hé hēi lóng jiāng qún shì jiā mù sī dì kuài qián hán wǔ jì jī dǐ de zhòng yào zǔ chéng 。
www.dictall.com
9.
This is illustrated by the fact that on Earth most of the Precambrian record is preserved in such lithologies.
在地球上，前寒武纪的许多记录就保存在类似的岩石里。
zài dì qiú shàng , qián hán wǔ jì de xǔ duō jì lù jiù bǎo cún zài lèi sì de yán shí lǐ 。
bbs.bioon.net
10.
They are important structural features in the Precambrian metamorphic rocks.
它是前寒武纪变质岩内一种重要的构造现象。
tā shì qián hán wǔ jì biàn zhì yán nèi yī zhǒng zhòng yào de gòu zào xiàn xiàng 。
www.dictall.com
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