This morning oil broke short term trendline support at $44.50 in thin volume and a failure to hold this level could bring in further technical selling targeting the "Christmas" lows of $36.20.
今早原油在交易量小的情况下跌破短期趋势的支撑$44.50，如果市场无法在该价位支撑住，市场会将圣诞节期间的低点$36.20作为技术性卖空目标。
It encompasses not just a technical infrastructure but also a user experience framework, usually some form of a selling channel, and a defined large-scale developer ecosystem.
它不仅包括技术基础设施，还包括用户体验框架，其形式多为销售渠道，以及形式明确、规模庞大的开发商生态系统。
Traditionally they have made billions by selling their programs, often demanding hefty sums to install them and then charging an annual maintenance fee for upgrades and technical support.
之前他们卖程序，这通常是需要斥巨资进行安装，再收取不菲的年维护和升级费用，可以大赚一笔。
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