The Software as a Service (SaaS) business model, driven by an effort to reduce IT cost and efforts, is garnering a lot of interest in the software industry.
软件即服务 (SaaS) 业务模型，其目标是减少 IT 成本和所需的工作，它越来越受到软件行业的关注。
As different aircraft has different delay cost, a new event-driven single airports ground-holding model was proposed.
从不同飞机有不同的延迟费用这一重要经济因素出发，建立了新的事件驱动型单机场地面等待模型。
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