Flavor aside, scientists have recognized it as a complex blend of chemical compounds with potential health effects, both good and bad.

姑且不论它的味道，科学家们已经知道咖啡里含有多种对健康具有潜在影响的化学成分，其中有好的、也有坏的影响。

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Chemical plant machine operators monitor and operate units and machinery to blend, mix, process and package a wide range of specialty chemicals, pharmaceuticals, cleaning and toiletry products.

化工厂机器操作员监视和操作装置和机械，混合，组合，加工和包装范围广泛的特种化学品，药品，清洁和洗浴用品。

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To further understand the effect of tobacco stems in tobacco blend, a detailed comparative study of chemical components of tobacco leaves and stems before and after combustion was carried out.

为了加深理解梗丝在卷烟叶组配方中的作用，对比研究了烤烟叶片和烟梗的化学组成以及它们在不同温度下的热裂解产物。

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Flavor aside, scientists have recognized it as a complex blend of chemical compounds with potential health effects, both good and bad.

VOA: standard.2010.06.30