According to the "special equipment directory", lorry crane which belongs to a hoisting machine in mobile crane, code 4490, and the hydraulic lifting platform vehicle is in crane lift type, code 4890.
根据《特种设备目录》，随车起重机属于起重机械中流动式起重机类，代码为4490，而液压升降平台车则属于起重机械中的升降机类，代码为4890。
This is a gear pump hydraulic crane parts.
这是起重机配件液压齿轮泵。
The paper analyzes the capability of a variable hydraulic motor widely used in hoisting bodies of large tonnage automobile crane.
本文对一种广泛的应用在大吨位汽车起重机的卷扬机构的液压柱塞变量马达进行了性能的分析。
Imitating the project of electrical and hydraulic proportional valve, a CAM mechanism is adopted to input and convert the signal of crane arm's radius changing.
系统的控制信号输入方式借鉴电液比例阀方案，采用凸轮杠杆机构，从而利用了凸轮容易实现任意函数关系转换的优点。
Hydraulic dock ramp is a small crane.
液压登车桥是小型起重机械的一种。
Hydraulic crawler crane is a crane.
液压履带式起重机是起重机的一种。
The paper introduces in detail the working principle and make-up of the hydraulic synchronisation lifting device for lifting a high portal crane and gives an overall analysis of its hydraulic system.
文章详细介绍了超大型高架门座式起重机液压同步预升设备的工作原理和液压系统组成，并对液压系统进行了较全面的分析。
The problem of crane overload protection of the hydraulic static pile driving machine is originally solved by a full hydraulic project through comparison and demonstration in advance in this paper.
本文针对这一实际工程问题在静力压桩机吊机过载机理分析的基础上，通过方案的比较论证，首创性地提出了液压静力压桩机吊机过载保护问题的全液压解决方案。
We see the signs of a us recovery in the hydraulic crane business and Crawlers (under 200t) have also shown some improvement over prior years.
我们看见美国市场在液压起重机方面的复苏迹象，同时履带式起重机(200吨以下)销售也要比前几年有所改善。
On these cranes, the hydraulic RAMS that extend to raise up the crane do not push on the boom, but instead on a pivoting link-bar.
这些起重机，液压冲力并不是作用于吊杆上，而是作用于一个铰链连接杆。
This invention discloses a hollow hydraulic crane frame used for lane and face of coal mine.
本发明公开了一种适用于煤矿巷道和工作面使用的中空液压起重架。
GPC4 MULTIPLE hydraulic gear pump is used as a crane parts.
GPC4多联液压齿轮泵是用于起重机的一种配件。
GPC4 MULTIPLE hydraulic gear pump is used as a crane parts.
GPC4多联液压齿轮泵是用于起重机的一种配件。
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