The calotype was revolutionary in its use of chemically treated paper in which areas hit by light became dark in tone, producing a negative image.

卡罗摄影法对化学处理纸的使用是革命性的，其中光照区域色调变暗，形成负像。

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The raw sewage is chemically treated.

未经处理的污水要进行化学处理。

《牛津词典》

The meat is chemically treated to extend shelf life.

猪肉经过化学处理以延长保存期。

《柯林斯英汉双解大词典》

These include vaccination campaigns and the use of bed nets chemically treated to kill mosquitoes that spread malaria.

VOA: special.2009.09.28

This metal form is chemically treated before being covered with ink and then pressed onto paper.

VOA: special.2009.09.02

Most florists' blossoms have been chemically treated and are not safe to eat.

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Police said they will use chemically treated dipstick cards to check drinks.

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Unlike the normal gas extraction, chemically treated water is forced upon the rock underground to fracture it releasing the gas in the process.

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