求翻译：进入21世纪，能源紧张问题日益突出。世界各国在不断提高能源利用效率的同时，还不断开发新的能源。太阳能作为世界上最清洁、最丰富的能源备受世界的关注。太阳能住宅的设计也在不断探索和尝试中。太阳能的利用是近几十年全世界一直在研究和探索的课题。随着科技的发展，太阳能与住宅结合也越来越深入，从被动式技术到主动式技术；从太阳能墙到太阳能光伏发电、太阳能热水、太阳能空调，所有太阳能技术均在住宅上实践、利用。是什么意思？

Into the 21st century, energy shortages are becoming increasingly prominent. Countries in the world at the same time continue to improve energy efficiency, but also continue to develop new energy. Solar energy as the world's cleanest, most abundant energy much world attention. Solar house design als

In the 21st Century, energy shortage problems are becoming increasingly prominent. The countries of the world in increasing the efficiency of energy use, while also continuing to develop new energy sources. Solar energy as part of the world's most clean, the most abundant energy back to the attentio

Enters for the 21st century, the energy tense question is day by day prominent.The various countries while is enhancing the energy use efficiency unceasingly, but also develops the new energy unceasingly.The solar energy took in the world is cleanest, the richest energy prepares the world attention.

Entering the 21st century, energy crisis issues have become increasingly prominent. Increasing energy efficiency of the world at the same time, constantly developing new sources of energy. Solar power as the world's cleanest and most abundant energy attracted worldwide attention. Solar home design i

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