strata

英 [ˈstrɑːtə]

美 [ˈstreɪtə]

stratum 的复数

复数：stratas　

TOEFL医学

柯林斯词典

• (stratum 的复数)
  Stratais the plural ofstratum.

双语例句

• The geological strata and it's basic constitute characteristics are also introduced.
  概述了矿区巨厚土层的地层结构及其基本组成特点。
• Particular strata of rocks can be approximately dated according to the presence or absence of certain fossils.
  根据特定地层中现存和缺失的化石可以近似的估计年代。
• By systematic study on some categories of biotic fossils discovered in the carboniferous strata of Laiwu coal field, the assemblage of Fusulinida and conodont of this area is established.
  通过对莱芜煤田石炭系多门类化石的研究，建立了本区石炭系蜓及牙形刺组合带，在此基础上对其地层层序及生物地层的划分和石炭二叠系界线的确定进行了讨论。
• The results indicate that the natural gas of the Xujiahe Formation mainly derived form the lower strata.
  结果表明，研究区须家河组的天然气主要来源于下伏地层。
• The application to constrain strata age is illustrated by dating the Cretaceous sediment in western Qinling Mountain.
  本文以西秦岭地区三岔&四店一带的白垩纪地层为例，说明该方法在制约地层年龄中的应用。
• The rebels came overwhelmingly from the poorest strata of rural society.
  叛乱分子绝大多数来自农村的最贫困阶层。
• The paper introduced the blasting parameters and construction technology for small section tunnel in crumbly strata.
  介绍了破碎岩层中小断面坑道的爆破参数和施工技术。
• And adjustment in rock strata means that loose soil will sink or heave.
  岩层的调整意味着松动了的泥土将会下沉或者鼓起。
• ( geology) of valleys and rivers; running in the direction of the dip in surrounding rock strata.
  （地质学）指山谷或者河流；按倾斜进周围岩层的方向发展。
• Oil shale always has the accompanying relationship with overlying sedimentary tuff or other tuffaceous strata.
  油页岩常与上覆沉凝灰岩或其它凝灰质岩石呈伴生关系。