The original white lead pigments have oxidized and turned black.
原来白色的铅颜料已经氧化发黑了。
Green tea contains between 30 and 40 per cent of water-extractable polyphenols, while black tea (green tea that has been oxidized by fermentation) contains between 3 and 10 per cent.
绿茶含有30%——40%的可以水萃取的茶多酚，而红茶(绿茶经过发酵后的产物)只含有3%——10%。
Black liquor is a water slurry containing both organics, which are oxidized and inorganics, which are recovered as pellets.
黑色押题是水和煤浆的混合物，一种既含有氧化的有机物和无机物，成为颗粒进行回收。
Oolong tea, popular in China, is partly oxidized and is a cross between black and green tea in color and taste.
乌龙茶在中国非常流行，它只进行部分氧化，颜色介于红茶跟绿茶之间。
Firstly, it was contrastively studied that the nanometer carbon black was oxidized by two kind of oxygen plasma: radio frequency discharge (RF) and dielectric barrier discharge (DBD).
本文首先对比研究了两种以氧气作为放电气体的等离子体：电感式射频辉光等离子体(RF)和介质阻挡放电等离子体(DBD)氧化纳米炭黑的工艺。
The breakdown of amino acids which occurs as the flavanols are oxidized gives rise to aldehydes in black tea aroma.
黄烷醇氧化时发生的氨基酸降解，产生了红茶香气中的醛类物质。
The color of the aluminum-anodic-oxidized membrane will be yellow or black due to different electrolytic tinction time.
铝阳极氧化着色膜随电解着色时间不同而呈现黄色膜和黑色膜。
After all when blood oxidized, usually in black or darked brown colour.
而且血干枯了之后是黑色或深褐色的。
Result showed that organic substances in black liquor were oxidized by MAE through opening the aromatic rings of lignin.
其结果表明MAE对黑液中的有机物具有一定的氧化作用，能使木质素中的芳环被氧化而打开。
Green tea unlike black tea has not been oxidized and can easily turn bitter if not made properly.
绿茶与红茶不同，没有经过发酵氧化，如果处理不当很容易发涩变苦。
Green tea unlike black tea has not been oxidized and can easily turn bitter if not made properly.
绿茶与红茶不同，没有经过发酵氧化，如果处理不当很容易发涩变苦。
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