chen xin wen zhang deng (7 résultats)

paperback. Etat : New. Language:Chinese.Paperback. Publisher: Xi an Jiaotong University Press Pub. Date :2010-09-03. The the book focuses on a variety of radio technology used for equipment and systems in high-frequency electronic circuits. including small-signal tuned amplifiers. nonlinear circuits with time-varying parameter circuit analysis. high frequency power amplifier. sine wave oscillator. amplitude modulation and demodulation. angle modulation and demodulation. mixing. feedback control circuit. the circuit.

paperback. Etat : New. Paperback. Pub Date :2012-05-01 Pages: 305 Language: Chinese Publisher: Dalian University of Technology Press. Accounting Applied Higher accounting class of the new century curriculum planning materials give full consideration to the reform and development trend of China's accounting. so that both to meet the practical needs but also consider the future development; embodies Chinese characteristics. and in coordination with international accounting practices; neither reflect current standards.

paperback. Etat : Good. Pub Date :1992-08 Publisher: the small Pangzhu of comic book publishing house small cat small dark horse giraffe dolphins.

paperback. Etat : New. Paperback Pages Number: 329 Language: Chinese. The rapid development of Chinese society and economy gave rise to an unprecedented well-being. agricultural production. however a large number of activation of the nutrients applied in the substantial increase crop production levels. but also on the ecological environment and human life an unprecedented negative impact. Optimize nutrient cycling. improve nutrient resource use efficiency. has become related to agriculture and even social developme.

paperback. Etat : New. Paperback. Pub Date: 2021-03-01 Pages: 290 Language: Chinese Publisher: Tianjin University Press Nonlinear Dynamics Theory and Application comprehensively and systematically introduces the analysis of the steady solutions of single-degree-of-freedom and multi-degree-of-freedom nonlinear vibration systems (Periodic solution) and unsteady solution asymptotic method. averaging method. multi-scale method. small parameter method. harmonic balance method and other research methods. various qualitat.

paperback. Etat : New. Paperback. Pub Date: 2020-12-01 Pages: 645 Language: Chinese Publisher: China Drama Publishing House Beijing Intangible Cultural Heritage Inheritance Population History (set of five volumes) is a series of publications. a total of five volumes. total length 500 thousand words. through interviews with 5 inheritors and surrounding personnel. recording and sorting out the interviewees oral materials. recording these inheritors skill inheritance process. thinking and skill performance. and creati.

paperback. Etat : New. Paperback. Pub Date: 2017-01-01 Pages: 273 Language: Chinese Publisher: science press. Beijing. the insect phototaxis and insecticidal lamp application in tobacco under the main body. in the design. 3 a total of 12 chapters. the main contents include: last. the principle and application of the insecticidal lamp. including the relationship between biological and light. light sports behavior and mechanism of insects. insect.