Wang ting cai deng (3 risultati)

paperback. Condizione: New. Paperback Pages Number: 281 Language: Chinese. Frequency control system design and application of close contact with the engineering practice. with the typical cases and an overview of the structure and composition of the inverter principle. from a practical point of view. and described in greater length frequency converter speed main circuit and control circuit design. the inverter electromagnetic compatibility. the frequency control system installation. operation. commissioning. maintenance.…

paperback. Condizione: New. Paperback. Pub Date: 2017-11-01 Pages: 280 Language: Chinese Publisher: people's publishing house of posts and telecommunications innovation of China's economic growth of the digital economy new blueprint from the strategy of digital economy and power accurately. digital transformation of traditional industries. science and technology innovation to drive the digital economy and new economy under the fine part four expounds the digital transformation of the development of the digital economy h.…

paperback. Condizione: New. Paperback. Pub Date: 2020-06-01 Pages: 225 Language: Chinese Publisher: China Agriculture Press Kindergarten Scientific Research Project Research Guide is divided into 4 chapters: The first chapter mainly introduces the concept. characteristics and value of kindergarten project research.?The second chapter is the survey results of the current research status of the subject. which diagnoses beneficial experience and existing misunderstandings and problems.?The third chapter introduces in detai.…