见证建筑机械租赁业的成长

来源 :建筑机械化 | 被引量 : 0次 | 上传用户:lzh23
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
我从1985年参加工作至今,亲眼见证了建筑机械租赁行业的发展历程。20世纪80年代前期,受计划经济体制的约束,工程建筑机械用户都是一种封闭的,自己自足、自我服务的模式,各大施工企业都拥有自己的 Since I joined the work in 1985, I witnessed the development of the construction machinery rental industry. In the early 1980s, under the constraints of the planned economy, construction machinery users were all closed, self-sufficient and self-service models. Major construction enterprises all had their own
其他文献
We investigate the interacting new holographic dark energy (HDE) with viscosity.Specifically,we not only study the dynamical evolutions of the new HDE with visc
期刊
We explore the Potts model on the generalized decorated square lattice,with both nearest (J1) and next-nearest (J2) neighbor interactions.Using the tensor renor
期刊
本文介绍的单片机测量系统是智能化磁敏转矩转速仪中的实用系统。其测量原理是用单片机内部的定时器对转矩——相位型传感器输出的转矩信号和转速信号进行计时测量,计算出被
To transmit a message safely,five-particle cluster state particles are used to construct a bidirectional quantum secure direct communication protocol.Five-parti
期刊
An inter-component epitaxial strain-induced PbTiO3 metastable phase is observed in a PbTiO3-CoFe2O4 epitaxial composite film,corresponding to the dielectric ano
期刊
With the development of science and technology,and the need for engineering practice,more and more attention has been paid to the nanoporous[1-5] flow which pla
期刊
据联合国教科文组织设在德国汉堡的成人教育研究所日前公布的统计数字显示,2000年到来之际,全球文盲人数已增加到9亿多,其中三分之二是妇女.
为了探讨稀土元素对茶叶的增产效应和施用技术,以便在生产上大面积推广提供科学依据,我场从1985年开始以六龄和二十三龄的梅占品种进行试验。试验区土壤属赤红壤,pH值4—5.1
期刊
Granular segregation induced by an exteal driving force,an ancient but fascinating topic,has attracted intensive attention from academic society for two decades
期刊