ISBN: 9787508459257 - 继电保护工 (电力工人技术等级暨职业技能鉴定培训教材(初、中、高级工及技师、高级技师适用)) (1 resultados)

paperback. Condición: New. Paperback. Pub Date: 2009 Pages: 240 Language: Chinese Publisher: China Water Power Press relay protection workers under the Electricity workers grade standards. the People's Republic of China Occupational Skill Testing Specification. vocational skills appraisal guide book and related professional national standards. industry standards and job specifications written for one of the the electricity technical level of workers and Occupational Skill Testing training materials. Relay protection wo.…