一、引言本课题是国家科技部下达的“技术标准研究”重大专项中的具体课题之一。下设机床、大型工程施工机械和现代农业装备新技术标准研究与制定三个子课题。这些子课题的建立除各自相对独立外,还为总课题起一定的支撑作用。本课题由国家质检总局、国家标准委批准下达。课题在 I. INTRODUCTION This project is one of the specific topics in the “Major Project of Technical Standards” issued by the Ministry of Science and Technology. Under the machine, large construction machinery and modern agricultural equipment, new technology standards research and development of three sub-topics. In addition to their relative independence, these sub-topics have also played a supporting role in the overall task. This topic is issued by the AQSIQ and the National Standard Committee. The subject is