1) multi-level logistics network
多级物流节点
1.
Modeling and solving for locations of multi-level logistics network
多级物流节点选址问题建模与求解
2) multistage throttle
多级节流
1.
The study of multistage throttle valve in oil well control system;
多级节流井控系统的研究
2.
The multistage throttle intelligence control system is a set of complex machines , involves many technologies, most essential technology real - time controls the throttle valve pressure drop using the computer.
多级节流智能控制系统是一套复杂的机、电、液一体化系统,涉及多项技术,其中最关键的技术是应用计算机对井控节流阀压降的实时控制;系统采用计算机电液比例闭环控制,通过研究建立了系统的数学模型,并结合石油天然气井控的相关知识采用PID控制算法,对液动节流阀的阀芯位移和阀压降进行比较准确的控制;没计最大井控压力105MPa,压力控制误差小于0。
3) logistics node
物流节点
1.
Evolution mechanism of logistics node system;
物流节点系统演化机理研究
2.
Method on Establishing the System Structure of Railway Logistics Nodes;
铁路物流节点系统结构的建立方法
3.
Location model of urban logistics nodes based on DPSO;
基于离散粒子群算法的城市物流节点选址模型
4) logistics nodes
物流节点
1.
With a classification of goods and their logistics nodes (centers or facilities), and according to goods movements and other external conditions of the target year, this paper formulates planning scenarios for determining the final candidates from a preliminary selection of logistics nodes after consulting with local stakeholders.
在对物流和物流节点进行分类研究的基础上,根据规划年各货物品种流动路线及其他外部条件,确定备选物流节点位置,并对其进行比选,最终确定物流节点规划布局方案;同时,根据物流方向预测结果,科学合理地确定各个物流节点的规模,并专门针对物流园区内部设施的布局提出概念性设计模式。
2.
The construction of regional logistics network should make clear about the target of service,take regional geography,economy and logistics into account,and define logistics nodes,routes and relationship clearly.
区域物流网络建设的重点是选择和确定物流节点,并要实现节点和线路的协调发展。
3.
On the basis of the layout planning and the variety of logistics movements of multi-commodity logistics nodes,an optimization model was proposed.
在物流节点布局规划的基础上,考虑多种货物品种以及节点内部各种不同的物流状况,提出多品类货物流的物流节点内部设计问题并建立优化模型,旨在确定各品类货物在物流节点内的流量、流向并据此确定节点内各主要功能区的面积。
5) spindle with multiple throttling
多级节流阀杆
1.
Application of numerically controlled lathe in the machining of control valve spindle with multiple throttling;
数控车床在调节阀多级节流阀杆加工中的应用
6) Step-orifice
多级节流孔板
补充资料：节流装置
流量测量仪表中的差压流量计的测量部分，由节流件、取压装置和前后直管段组成。图为节流装置的基本结构。节流件的种类繁多，其特点和用途如表。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条