A.起升机构用于改变吊物至塔身的距离,即塔式起重机的工作幅度B.小车变幅牵引机构由变幅卷扬机、牵引钢丝绳、导向滑轮和变幅小车等组成C.回转机构是实现起重臂绕塔式起重机中心线回转的工作装置D.液压顶升机构用于塔式起重机的安装、拆卸,加标准节及降标准节
A.Uplink carrier used for Msg1transmissionB.Index of the first slot of the specified PRACH in a system frameC.Index of the specified PRACH in the frequency domainD.Index of the first OFDM symbol of the specified PRACH
A.HadoopStreamingB.Hadoop Distributed Filesystem(HDFS)C.HadoopMapReduceD.Hbase