Distribution transformer adds power factor correction capacitor in the secondary side to collect compensate, so as to advance power factor and augment the load capacity of transformer.
本文对无功补偿后变压器允许增加的负载容量及相关问题进行了研讨。
This paper introduces different methods on how to add, delete, edit records in a database.
介绍了利用MFCODBC对数据源中的数据进行修改、增加、删除等操作的方法 ,并配有VC ++实例说明 。
In recent years, people attach more importance to "lie-detection"-a new psychology technique in the practice of public security organs, so it s necessary to add "lie-detection" to the crime psychology course and combine theory with practice in the course.
在犯罪心理学课程中增加“心理测试”的内容,是公安高等教育的必然要求。
Implementing the middlings rewashing process to increase cleaned coal yield;
实施中煤再洗工艺 增加精煤产率
By way of the analysis of the pharmaceutical variety and specifications of the injection,find recently that the pharmaceutical variety and specifications of the injection increases quickly in our country,it transcends the specifications scope of the pharmaceutical standard,brings many inconvenience in the aspects such as the use of the injection,quality tests and the price management,etc.
通过分析注射剂药物品种规格发现,近年来我国注射剂药物品种规格快速增加,超出药品标准的规格范围,对注射剂药物的使用、质量检验、价格管理等方面带来许多不便。
It is inevitable for the use of iatric consumptive material in hospital to increase along with the increase of the surgery patient s amount.
医院医疗耗材使用 ,随着就医病员尤其是手术病人的增加是必然的。
(2) Optimizing riser operation, increasing the amount of pre-r.
0Mt/a重油催化裂化装置原料性质不稳定、负荷率低、部分主风放空、烟气轮机效率低等问题 ,提出了挖潜增效的措施 :①筛选原油种类 ,降低原油重金属含量和硫含量 ,使柴油达到清洁燃料产品新标准 ;②优化提升管操作 ,增加预提升干气量和雾化蒸汽量 ,用酸性水代替石脑油作终止剂 ;③加大催化剂置换速率 ,保证催化剂活性 ;④将不完全再生改为完全再生 ,提高烟气轮机效率 ;⑤更换为适当的小叶片烟气轮机转子 ,再生器压力改由双动滑阀控制 ;⑥对气压机组调优等。
In the paper,researching into the minimum varance set,we proved that the risk of optimal portfolio may not reduce at the same expected return on increasing securities number and gave the full and essential condition of distinguishing invalid security under risk non-reducing.
以证券组合投资之最小方差集合为研究对象,证明了随着证券数目的增加,对应相同的期望收益率,最优投资组合的风险不一定必然减少;并给出了在风险不减少情况下无效证券差别的充要条件。