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。
The development and successful application of mobile roof support make ready a new type supporting equipment for mechanized mining of short-wall faces.
履带行走式液压支架的研制与成功应用，为短壁工作面机械化开采提供了一种新的支护设备。
Design, equipment completion and type selection of mobile dripping irrigation technique by water collecting cellar are emphatically studied.
着重研究了全移动窑窖滴灌技术的设计、设备配套与选型。
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