1)  composite column
组合列
1.
In this paper we extended traditional relational model using constraints,introduced composite column composed by constraint variables and the notion of constraint database,proposed intermediate schema for composite column using the canonical form of constraints,and implemented the defination of this kind of constraint database.
引入了约束变量的组合列的概念并定义了含有组合列的约束数据库 。
2)  Combined train
组合列车
1.
The minimum quantity of the combined trains and the time for combination is taken as the model goal and solution algorithm on the basis of minimum .
本文在借鉴已有空车调配问题研究成果的基础上,分析了重载铁路空车以列为单位回送等特点,研究了重载铁路列车组合分解作业对通过能力的影响,建立了以组合列车数量、组合时间最小化为目标的重载铁路卸车端空车回送模型,并将其转化为网络流模型,采用最小费用最大流算法进行求解。
3)  connected train
组合列车
1.
Brake performances of 20000 ton connected train;
两万吨组合列车制动特性
4)  20 000t combined train
2万t组合列车
5)  heavy-haul train
重载组合列车
1.
To meet the ever-increasing demand for the railway transportation, the operation of heavy-haul trains is an effective way to improve transport capacity.
为满足铁路不断增长的货物运输需求,开行重载组合列车是一种有效提高运输能力的方法。
6)  complex shell and tube graphite heat exchanger
组合列管式石墨换热器
1.
Application of complex shell and tube graphite heat exchanger in production of WPA;
组合列管式石墨换热器在磷酸工业中的应用
参考词条
补充资料:组合模式或组合振动
分子式:
CAS号:

性质:在红外光谱中通常出现很多的弱吸收,组合模式或组合振动系指对应于两个或多个基本振动频率之和起源,它的弱吸收于多原子分子振动态相互作用的振子的非谐性。与基频振动及倍频所引起的吸收相比,这些吸收是比较弱的。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。