1)  triple tube
三层取心筒
2)  three-layer
三层
1.
Application of Three-layer Development Architecture Based on ASP.NET;
基于ASP.net的三层开发架构应用探讨
2.
The laser welding technology of three-layer zinc coated sheet was studied as well as the effects of thickness combination,gap combination,gravity force and welding speed were discussed in this paper.
研究了三层镀锌钢板的激光焊接工艺,讨论了三层板的厚度组合、间隙组合、重力和焊接速度等因素的影响作用。
3)  3-Tier
三层
1.
The Research of 2-Tier and 3-Tier Structure Based on the Client/Server Architecture;
基于客户机/服务器体系的二层与三层结构研究
4)  partial pressure
三层分压
5)  Triple production
三层分采
6)  three-layer reservoir
三层油藏
1.
Well test model of non-newtonian power-law flow in the three-layer reservoir with interzonal crossflow;
具有层间窜流的三层油藏非牛顿幂率流试井模型
参考词条
补充资料：三层大，二层小
1.谓家庭中人口众杂，上辈之上还有上辈，下辈下面还有下辈。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。