substrata meaning in English
substratum的复数
地层内段
Examples
- Water quality . design and use of quantitative samples for benthic macro - invertebrates of stony substrata in shallow freshwaters
水质.浅淡水中多石地层水底大型无脊椎动物定量取样的设计和使用 - What is called " substrata " is always single sand or single sand layer and belongs to the lowest reservoir unit
所谓“小层” ，通常是指单砂体或单砂层，属于油气田最低级别的储层单元，为油气开发的基本单元。 - Water quality ; design and use of quantitative samplers for benthic macro - invertebrates on stony substrata in shallow freshwaters iso 8265 : 1988 ; german version en 28265 : 1994
水质.浅淡水中多石底层上水底大无脊椎动物的定量取样 - Such soils usually form in areas of heavy rainfall , which causes leaching of lime from the surface layers , or over acid substrata such as granite or sand
通常是由于大雨过滤掉了表层土壤的石灰或者是由于覆盖诸如花岗岩或者沙土这类的酸性下层土壤造成的。 - Water quality - biological methods - methods of biological sampling : guidance on the design and use of quantitative samplers for benthic macro - invertebrates on stony substrata in shallow freshwater
水质.生物法.生物取样法.浅淡水中多石底层上大无脊椎动物定量取样器设计和使用指南