它们包括先进的薄膜过滤污水处理系统、高效的太阳能照明，以及用于供电、供热和制冷的天然气联合循环涡轮机。
They include advanced, membrane-filtered wastewater treatment systems, solar-powered, high-efficiency lighting and natural gas combined-cycle turbines that will deliver power, heating and cooling.
对由太阳能集热器热水自然循环加热的太阳能热转换系统卵石层的热特性进行了实验研究。
Thermal characteristics of the gravel layer in the system heated by hot water natural circulation with solar collector were studied.
训练的课程包括制热制冷原理、液体动态循环理论、高级制冷技术、太阳能等其他制热系统的学习，同时也要学习如何阅览设计图与损失评估等。
Training includes thermal and refrigeration theory, fluid flow dynamics, advanced refrigeration, solar and other alternative heating systems, as well as how to read blueprints and estimate costs.
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