Foreword

<正> A decade is only a very short instant in the long human history, but as far as agricultural engineering in China is concerned, the last decade has gathered the endeavor of many scientists and technicians. They have made positive and useful contributions to our agriculture. I like on this occasion of the issuring of this celebrating edition to express my sincere respect to them. I hope they in their future work can continuously apply their useful technology to agricultural production, raise the productivity and the quality of products, increase the ability in overcoming natural disasters.