以下为句子列表：
英文: Solar radiation removes a wide range of organic chemicals and pathogenic organisms by direct exposure, is relatively inexpensive, and avoids generation of harmful by-products of chemically driven technologies (4).
中文: 日光直接照射可去除多种有机化学物质和致病微生物，它相对廉价，且不会像化学方法那样会产生有害的副产物。
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