Portal crane sub frame and four-link arm two types, from the crane hoisting, luffing, slewing and walking four agencies ac frequency control, the machine USES PLC control, superior performance.
门座式起重机分单臂架和四连杆两种类型，起重机的起升、变幅、回转和行走四大机构均采用交流变频调速，整机采用PLC控制，使用性能优越。
The method also includes the step of transmitting at least one sub-frame associated with a second frame.
所述方法还包括传送至少一个与第二帧相关的子帧的步骤。
In addition, the vibration isolation function of sub-frame for powertrain is also studied.
此外还对副车架在动力总成隔振系统中的作用进行了研究。
The company started with phase one in 2014 focused on aluminum alloy sub-frame parts.
公司一期建成于2014年，主要生产铝合金支架产品。
The company started with phase one in 2014 focused on aluminum alloy sub-frame parts.
公司一期建成于2014年，主要生产铝合金支架产品。
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