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- Constrain the time of the paleocoenosis fossil stratum by K-Ar age of Sihetun volcanic rock sequence 以火山岩层序剖面K-Ar测年确定辽西四合屯古生物化石地层的年代
- Paleocoenosis fossil stratum 热河生物群
- He found a piece of fossil of an ancient bird. 他发现一块古代鸟类的化石。
- This fossil may be over 2 million years old. 这化石可能超过二百万年了。
- Can you date the fossil exactly? 你能确定这化石的确切年代吗?
- They represent each society stratum. 他们代表各个社会阶层。
- Isn't Professor Bell an old fossil? 贝尔教授真是个老顽固。
- A microscopic fossil, as of a pollen grain or unicellular organism. 微体化石一种微小的化石，如花粉粒或单细胞有机体的化石
- If we squander our fossil fuels, we threaten civilization. 如果我们浪费矿物燃料，我们就威胁文明。
- They do not constitute a separate class or stratum. 知识分子和青年学生并不是一个阶级或阶层。
- He hates the privileged stratum. 他憎恨特权阶层。
- The gossip tossed the mossy blossom fossil. 爱讲闲话者向上抛长满苔藓的花化石。
- This is a stratum we must win over. 这一阶层，我们是必须争取的。
- A finite list of choices; our finite fossil fuel reserves. 为数有限的选择; 我们有限的矿物燃料贮量
- Tramps are from the lowest stratum of society. 流浪汉来自社会最下层。
- The solid matter in which a fossil or crystal is embedded. 基质，脉石嵌有化石或水晶的固体物质
- Is The Intermediate Stratum Forming in China? 中国的中间阶层正在形成?
- Coal is usually referred to as a fossil fuel. 煤通常被称为矿物燃料。
- Modification of breather stratum about airslide. 空气输送斜槽透气层的改造。
- The fossil may over 2 millon years. 这化石可能超过二百万年了.
