查询词典 guide fossil

Genus of fossil seed ferns of the Carboniferous .

石炭纪的一种化石种子蕨。

Generally, three kinds of methods, including microstrocture, cathodoluminescence and trace element concentration analysis, are applied to verify the preservation state of original geochemical information preserved in the articulate fossil.

低镁方解石腕足化石壳体被广泛地应用于地质历史时期原始海洋地球化学组成的重建研究，其保存度的识别是该研究的一项重要内容。

Deep inside, some of the world's rarest creatures cavort in one of the most pristine patches of rain forest on earth, a direct but accidental result of Gabon's reliance on one of the filthiest fossil fuels: crude oil.

密林深处，某些举世最稀有的生物在地球上最原始雨林之一嬉戏，这是加彭仰赖污染最严重的石化燃料之一石油直接但意外的结果。

The Rhynie Chert is one of the most important fossil plant occurrences because it represents the oldest and most completely preserved terrestrial ecosystem.

莱尼碎石作为最重要的植物化石产出，其关键在于它代表了最古老、最完整保存的陆地生态系统。

And the result based on the fossil L.pachyphyllum from the Miocene Clarkia Formation in the U.S.A. agrees with the viewpoint.

采集于美国Clarkia中新统地层中的δ~(13)C也同样指示了化石枫香不能作为推算晚中新世δ~(13)C_的可靠材料。

Some guess that clathrate methane reserves could equal twice the rest of the world's fossil fuel supplies combined.

据估计这种晶体结构所储存的能量相当于全世界所有石化原料总和的两倍。

Indeed,under the Clean Air Act, in the next few years cars that do not run onstandard fossil fuels like gasoline will be required in several states.

事实上，根据清洁空气法案，在未来数年内，车不上运行的标准化石燃料如汽油，将需要在几个国家。

Scientists have also sought evidence of long-term solar periodicities by examining indirect climatologically data, such as fossil records of the thickness of ancient tree rings.

科学家还通过研究诸如古树化石的年轮厚度等间接的气候数据来寻找长期太阳活动周期的依据。

NASA climatologist James Hansen is a vocal proponent, favouring a variant in which fossil fuels are taxed at source or at a country's port of entry.

美国宇航局的气候学家詹姆斯汉森是拥护者之一，倾向于就化石燃料在产地或入口港进行征税的税制。

My work is mainly objects - shell, coelacanth and something like a living fossil.

我的作品主要是实物一如贝壳、空棘鱼化石和类似活化石的东西。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。