Sixth: researched three harmless way to process oil contended sludge.
针对含油污泥研究了三种无害化处理方法。
参考来源 - 油田污水高效净化与稳定处理技术及其有效利用影响研究Yanqin：With the cool and dry weather, the area is suitable for developing European grape (Vitis vinifera) table grapes and wine grapes. it is a very important place to produce green and harmless products.
延庆地区：气候干旱冷凉、宜于发展欧亚种鲜食品种及酿酒品种，是生产绿色、无公害产品的重要地区。
参考来源 - 北京地区葡萄品种生态区划研究They take enough advantage of their resources to develop the harmless green agriculture products, and regard the eco-agriculture as the industry with most support. The next period will be the important stage of eco-agriculture construction of Ninghai county.
近几年,宁海县正着力打造“宁波的绿色后菜园”,利用独特的资源优势,发展无公害绿色农产品,并将生态农业作为宁海县重点扶持的行业。
参考来源 - 循环经济模式在生态农业建设中的应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
"harmless bacteria"; "rendered the bomb harmless"
同义词： innocuous
"harmless old man"
同义词： innocuous
"a benign tumor is usually harmless"
同义词： nonmalignant
以上来源于: WordNet
ADJ Something that is harmless does not have any bad effects, especially on people's health. 无害的
This experiment was harmless to the animals.
这个实验对动物无害。
ADJ If you describe someone or something as harmless, you mean that they are not important and therefore unlikely to annoy other people or cause trouble. 不会惹麻烦的
He seemed harmless enough.
他似乎不会惹麻烦。
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