Most airlines admit they need GDS distribution, so the push-pull will continue.
大部分航空公司承认，他们需要GDS做分销，因此这场拉锯战将继续。
2
The push-pull combination content distribution strategy is general applied to live systems because of its limitation such as redundant packets, poor dynamic adaptability and so on.
推拉结合的内容分发方案由于存在较多冗余数据和动态适应性较差等缺陷，一般只能适用于直播系统。
3
The dissertation proposes a push-pull combination content distribution strategy for VoD systems.