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1·Breathing particulate-laden (aka smoggy) air may be hardening your arteries faster thannormal, according to research published recently in PLOS Medicine.

根据近日发表在《公共科学图书馆?医学》杂志上的研究，呼吸含大量颗粒物的（雾霾）空气可能会让你的动脉硬化速度加快。

2·AGING: the process of running product through low temperature air draw furnaces for the purpose of relieving stress which was caused in the hardening operation.

时效处理：指让产品通过低温通风炉以释放淬火造成的应力的工艺。