理学 层 释 bed 层 对于识别度高、横向延伸较远且具有特殊地质意义的一个或多个单层所划分的岩石地层单位。
＞代数几何＞代数曲线＞释义 sheaf 层 lamina 层，片 layer 层 sheaf 层†，束 stratum 层† tier 层，等级
网络与数据通信 协议体系与组成结构 释文 layer 层
- water drainage measures for mine
- water drainage of concentrators
- Water Drainage Standard for Mariculture
- water draught gauge
- water-drawing permit
- water-drawing permit system
- water-drawing right
- water drive
- Water-driven Astronomical Clock Tower
- water-driven blower
- water-dropper
- water dropwort
- water ecological civilized city
- water ecological culture
- water ecological footprints
- water ecological risk assessment
- water ecosystem succession
- water-ecosystem zone definition
- water ecotype of forages
- water efficiency label management
- water efficiency of canal system
- water electrolysis
- water emulsion
- water-energy dynamic hypothesis
- water energy resources of China