Scientists are trying to make direct use of solar energy on a large scale .
科学家们正试图大规模地直接利用太阳能。
However, it is rarely pure and is likely to require treatment measures for direct use.
然而，这样的水源很难保持纯净并且为了直接使用很可能需要再处理。
Machine language: a language designed for the direct use by a computer without translation.
机器语言：为电脑直接使用，不需翻译，而设计的语言。
Machine language: a language designed for the direct use by a computer without translation.
机器语言：为电脑直接使用，不需翻译，而设计的语言。
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