ISBN: 9787113306663 - 铁路信号工(车站与区间设备维修)/职业技能等级认定学练丛书 (1 risultati)

paperback. Condizione: New. Language:Chinese.Paperback. Pub Date: 2023-12 Publisher: China Railway Publishing House: This book is one of the Vocational Skill Level Certification Learning and Training Series. which is suitable for the daily training and examination of five positions of railway signal workers (station and section equipment maintenance): junior worker. intermediate worker. senior worker. technician. and senior technician. The content includes questions and answers. practical work. and practical skills asse.…