The additive="sum" attribute allows the effect of the various transforms to be cumulative.

additive="sum" 属性允许各种变换的效果相互重叠。

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To counteract the "supra-additive effect" of speedy or glut eating among children prone to obesity, parents should encourage them to eat slowly and in calm surroundings, the study found.

研究指出，为了避免儿童吃饭过快或过量造成的“超相加效应”，家长应提醒孩子们在进食时细嚼慢咽，并让他们在安静的环境中进食。

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The performance of blended thick and thin polyester filament (BTTPF) before and after alkali treatment and the effect of the additive on it were discussed emphatically.

讨论了共混纺丝法制备的涤纶粗细节丝(BTTPF)的独特性能和添加剂对它的影响，并对碱处理后的BTTPF性能进行了探索。

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This problem is compounded by the possible presence of multiple chemicals which together have an additive effect that greatly increases the lethal action of any single chemical.

CNN: Chemicals killing Florida birds, fish