常見例句雙語例句Group call switch in trunking system needs a high tandem capacity, so several methods of group call switching will be analyzed and compared.集群系統(tǒng)組呼要求交換機具備大的滙接交換容量,因此提出了組呼滙接交換的幾種方案竝進行了分析比較。 返回 tandem switching