The high temperature thermal medium oil touchs the air in the traditional expansion system, it will be oxidated quickly.
在传统的开式膨胀系统中，由于高温热媒油与空气接触容易氧化。
Edible oils are prone to be oxidated during the preservation and supplementary, antioxidants can slow down the oxidation process.
油脂在贮存过程中容易发生氧化，添加抗氧化剂可以减缓油脂氧化。
If installed outdoor, the aluminum alloy shell can be oxidated to be the same colour as the building so that the light will not influence the beauty of the building.
如果安装在室外，可根据客户要求把铝合金外壳氧化成跟楼体相同的颜色，不会因为安装灯具而影响楼体的美观。
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