Dramatic social change seldom takes such a benign form.
巨大的社会变革很少能有这样温和的形式。
Management tactics range from using bone charcoal to soak up the carcinogen and then dispose of it as toxic waste to chemically transforming hexavalent chromium to a more benign form.
管理方法多样,简单的从使用骨炭吸收致癌物,然后把骨碳当作有毒废物扔掉,到高级的使用化学方法把六价铬转化成更良性的结构。
The most environmentally benign form of agriculture appears to be "no till" farming, which involves little or no ploughing and relies on cover crops and carefully applied herbicides to control weeds.
最环保的农业生产方式似乎是“免耕”播种,这一生产方式很少或不再耕作,依赖表层植被并谨慎使用除草剂。
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