我国国有大中型施工企业所拥有的工程机械，数量和质量都优于其他施工企业。为搞活国有企业，发展多种经营，将富余的部分工程机械用于对外承包或租赁，以提高机械的使用率，加速机械折旧，可以为企业多创效益。1.承包与租赁的区别承包过程中工程机械的一切经营管理由承包方负? The quantity and quality of construction machinery owned by state-owned large and medium-sized construction enterprises in China are superior to those of other construction enterprises. In order to invigorate state-owned enterprises and develop diversified operations, some of the surplus construction machinery will be used for contracting or leasing abroad, so as to increase the use rate of machinery and accelerate mechanical depreciation, which can create more benefits for enterprises. 1. What is the difference between contracting and leasing? In the contracting process, all operations and management of construction machinery are undertaken by the contractor?