1. This paper introduces application of frequency changer in oxidation ditch of sewage treatment plant of Qibing in Hebi Some problems are pointed out in the application of frequency changer. 介绍了变频器在鹤壁淇滨污水处理厂氧化沟中的应用，指出了变频器在应用中应注意的几个问题。
2. Duplex winding, three-winding, non-field excitation changer, on-load changer, oil-immersed natural cooling and oil-immersed forced-air cooling transformers are all in this serials. 双绕组或三绕组，无励磁调压和有载调压，油浸自冷及油浸风冷电力变压器，并可根据用户要求生产。
3. The paper puts forward principles and methods of examining and verifying firsthand record, monitoring report of digital record and monitoring report of literal record. 从实际工作出发，提出了审核原始记录、数字型监测报告（报表）和文字型监测报告的审核原则和方法。
4. Separation Masters: Three separate black and white master positives made from one color negative; one contains the red record, another the green record, and the third the blue record. 分色翻正片：从一彩色底片得到的三个独立的黑白正片：一个记录红色，一个记录绿色，一个记录蓝色。
5. The best record is a written record of your findings, which is included in the patient's case record. 最好的记录方式是，用文字描述，在患畜的病历记录中，写下你的发现。
