When it comes to the technology (tools) layer, there are three core SOA technology components that are most frequently used, according to the paper.
就技术(工具)而言，白皮书指出，最常用的核心soa技术组件有三个。
2
This paper describes the major design problems of threelayer lap-joint and multi-stage dosing asphalt sprayer and introduces the selection of the domestic truck chassis.
本文对三层搭接多级定量沥青洒布车的设计主要问题加以论述，并介绍如何正确选用国产汽车底盘。
3
According to the industry field bus technology, this paper has built threelayer model for the bus of fire alarm and control system, and has described each layer.