open layer meaning in English

排水出层

The workers use the machine to cut open layer for the gray skin
工人们使用机器为灰皮剖层。
Lucubrating opening layered architecture of virtual manufacturing
虚拟制造开放式层次化体系结构的研究
On the basis of these , we discuss the layered principal of an opening layered virtual manufacturing system based on network , and give the layered system architecture and the system characteristics which are found on the layered principal
在此基础上，讨论了基于网络的开放式层次化虚拟制造系统体系结构的分层原则，并提出了基于这些分层原则的层次化体系结构及体系特征。