guo liang chen wen bian (7 risultati)

paperback. Condizione: Good. World famous naval battle story (comic book) 9232.

paperback. Condizione: New. Language:Chinese.Paperback. Publisher: Economic Science.

paperback. Condizione: New. Paperback. Pub Date: 2021-06-01 Pages: 67 Language: Chinese Publisher: China Agricultural Publishing House. People increasingly realize that soil resources are limited and threatened by human activities such as industry. urban activities. and agricultural production.?In order to prevent soil degradation or the loss or decline of soil functions (such as providing healthy and nutritious food). there is an urgent need for sustainable management of soil resources.?A prerequisite for the sustainab.

paperback. Condizione: New. Paperback. Pub Date: 2021-06-01 Pages: 65 Language: Chinese Publisher: China Agriculture Press This book introduces the application of soil erosion control measures as the most difficult problem in soil erosion management.?At present. two problems have been confirmed to hinder the implementation of soil erosion control measures: First. many erosion effects occur off-site. and off-site effects have no direct interest relationship with land users. so land users will not take control. Management.

paperback. Condizione: New. Paperback. Pub Date: 2020-09-01 Pages: 200 Language: Chinese Publisher: Chemical Industry Press Intermediate Electrotechnical Technology is written around the requirements of the theoretical knowledge computer test and the operational skill test.?Intermediate Electrotechnical Technology designed 18 training projects. from the shallower to the deeper. the training content includes circuit breakers. fuses. master electrical appliances. contactors. relays and other low-voltage electrical applian.

Hardcover. Condizione: New. Language:Chinese.Hardcover. Publisher: Guangdong People.

paperback. Condizione: New. Paperback. Pub Date: 2021-07-01 Pages: 256 Language: Chinese Publisher: Nanjing University Press. This textbook highlights the goal and problem-oriented orientation. Each chapter sets up learning goals and mind maps to make learners' goals. Clear. the logical framework of the knowledge is clear; a large number of cases and pictures are interspersed in the text. so that learners can more intuitively understand knowledge. enrich practical experience. and increase the legibility of the textbook;.