The invading liquid phase can also cause the sensitivity of water, brine, acid and alkaline, which is the second potential damage factor.

液相侵入形成的水敏、盐敏、酸敏、碱敏是第二位潜在的伤害因素；

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Recently, it was proposed that endogenous formaldehyde(FA) may be involved in endothelial damage, and may be a potential factor of vulnerability of atherosclerosis.

近年来，有研究提出内源性甲醛（FA）可能是启动内皮细胞损伤，导致动脉粥样硬化的一个潜在危险因素。

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