When we are tense, the body produces cortisol which can speed up the metabolism, resulting in stress break-outs on the skin surface and premature ageing.
当我们紧张的时候，身体产生可以加快新陈代谢的皮质醇，结果使紧张在皮肤表面上爆发出来，导致皮肤早衰。
B. characteristics: nylon coating, surface gloss good, adhesion, high abrasion resistance, resistant to moisture, corrosion resistance, ageing resistance.
特性：尼龙涂层，表面光泽度好，附着力强，耐磨，耐潮湿，耐锈蚀，耐老化。
The heat ageing interaction of silicone rubber with three of fumed silica having different surface property was studied.
本文研究了三种表面性质不同的二氧化硅填料与二甲基硅橡胶在热老化时的作用。
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