The multicommodity network flow integer plannig model is established on the basis of the stock cost of freight.
构建了基于货物滞留费用的铁路空车调配多品类整数规划模型,并以空车在分配过程中发生的总走行成本、车种代用成本和客户需求未满足的货物滞留费用之和为目标函数。
A Study on Component Retention in Reservoirs during ASP Flooding Field Trials at Daqing;
三元复合驱油液各组分在矿场试验中的滞留研究
Weng Rui. Types of polymer retention and their determined methods .;
聚合物的滞留类型及相应的测定方法
The Effect of the Content of Clay on Polymer Retention and Entrapment;
岩心中粘土含量对聚合物滞留与捕集的影响
Meeting Requirements of PSC &Reducing Ship s Detention Ratio;
适应PSC需求,降低船舶滞留率
Analysis on the reason and lessons learned from the detention of a ship;
析某轮发生滞留事故的原因和教训
The chromaticgraphic separation of surfactant/alk line/polymer flooding is controlled by several factors, such as competing adsorption between oil zone and chemical agents, ion exchange, liquid liquid distribution, multipath movement and detention loss.
结果表明：三元复合驱油体系出现的色谱分离现象是由于驱替过程中油层和化学剂之间的竞争吸附、离子交换、液－液分配、多路径运移和滞留损失等多种因素引起的。
We calculate the residence time and environmental capacity of Cd element in the soil-water-paddy-atmosphere system.
根据马尔可夫链模型,定量地探讨了湖南省洞庭湖区农田生态系统中Cd的迁移转化问题,计算了Cd在土壤-水-稻谷-大气系统中的滞留时间和环境允许量,进而探讨了系统的生态承载力,得到系统中Cd的最大允许排放量CdA与生态承载力M人口之间的关系式:CdA=3。
The infiltration of carbon fiber preforms was studied by microwave pyrolysis chemical vapor infiltration technique,CH_4 as the carbon source gas,and N_2 as diluent gas,at 1100℃and methane partial pressure of 10kPa with residence time of 0.
以炭毡为预制体,N_2为稀释气体,甲烷为炭源前驱体,其分压为10kPa,沉积温度为1100℃的工艺条件下,研究了不同的气体滞留时间(0。
7%,and infiltrated by the novel ICVI at ambient pressure and 1100℃,residence time of 0.
采用改进后的新型ICVI工艺,在沉积温度1100℃、沉积压力为常压和滞留时间为0。