数据显示，经济低迷往往会推迟婚姻，因为双方负担不起组建家庭的费用，或者担心未来会有不测。
Data show that economic downturns tend to postpone marriage because the parties cannot afford to establish a family or are concerned about rainy days ahead.
现在通用的组建效率约为10%系统安装费用需要4元每瓦。
Current modules have 10 percent efficiency and an installed system cost of about $4 per watt.
it关注组建策略，COTS，过程，工具，重用，Enterprise Architecture Integration (EAI)，采购策略，标准，技术，遗产，维护费用。
It looks at strategies for components, COTS, process, tools, reuse, Enterprise Architecture Integration (EAI), outsourcing strategy, standards, technologies, legacy, and maintenance costs.
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