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
- pickering emulsion
- Pickering lines
- Pickering series
- Pick formula
- Pick Grapes
- picking
- picking and choosing approach
- picking cocoon efficiency
- picking equipment
- Picking Herbs on the Mountain
- Picking Lotus in the River
- picking maximum term method
- Picking Mushroom
- picking-out rate of waste rock
- Picking the Remaining in Art Garden
- Picking Unburnt Coal
- picking up and bundling
- picking up and stacking machine
- Picking Wei by Li Tang
- pickle
- pickled food
- pickling
- Pickpocket
- pick the ball machine
- Pick theorem