Firstly, market structure analysis is made on the degree of market concentration, produce difference and barriers to entry and exit of Pengzhou garlic industry.
主要从市场集中度、产品差别化和进入壁垒三个方面对大蒜产业的市场结构进行了分析，认为彭州大蒜产业是垄断竞争的市场。
The influence of inlet area and diameter of exit tube on particle concentration distribution is also investigated.
改变分离器入口面积及排气管下口直径对分离空间内颗粒浓度分布的影响规律是不同的。
The results illustrate that primary air ratio has a major effect on pulverized coal ignition and minor effects on gas temperature, oxygen concentration and unburned carbon at furnace exit.
结果表明：一次风率对煤粉气流的着火影响较大，而对出口处烟气温度、氧量以及飞灰含碳量影响较小。
The device works by measuring the concentration of ions - tiny charged particles - as they enter and exit cells.
该设备可以在带电离子出入细胞时测量出它们的密集程度。
The concentration distributions in the distance about 2.5 times diameter of blowpipe from the exit of the lance tend to be uniform...
直吹管内气-固两相的掺混甚为剧烈，使得在氧煤枪出口前端轴向距离为2.5倍，直吹管直径的截面上气-固两相混合均匀。
The concentration distributions in the distance about 2.5 times diameter of blowpipe from the exit of the lance tend to be uniform...
直吹管内气-固两相的掺混甚为剧烈，使得在氧煤枪出口前端轴向距离为2.5倍，直吹管直径的截面上气-固两相混合均匀。
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