The truth is that synthetic ingredients or chemicals dry out the skin; hence, they cause irritation and other allergic reactions and even contribute to pre-mature aging.
事实上，人工合成的化学物质使皮肤变的干燥易过敏，甚至导致皮肤提前衰老。
2
The effect of quenching temperature, the interval time from quenching to aging and aging institution to 2A70 aluminium alloy pre-stretching plate structure and properties are introduced.
介绍了固溶处理温度、淬火到时效间隔时间及时效制度等对2A70铝合金预拉伸厚板组织和性能的影响；
3
The pre cured tobacco leaves of growing and ripeness do not contain TSNA, and they are formed and accumulated during curing, aging after harvesting.