Objective: To prepare and observe sunscreen effect against ultraviolet ray of the sunscreen Cream.
目的：研制防晒霜乳膏，观察该乳膏对紫外线的防护效果。
Conclusion Ozonizer disinfection is more effective than ultraviolet ray.
结论三氧消毒机空气消毒效果优于紫外线。
The ultraviolet ray can hurt our skin badly.
紫外线会严重损伤我们的皮肤。
The ultraviolet ray shield finish principle and the sol-gelatin principle are summarized;
简述了紫外线屏蔽整理原理及溶胶-凝胶原理；
Can glasses prevent ultraviolet ray?
眼镜可以防紫外线吗？
The ultraviolet ray light can sterilize the packing material.
机内装有紫外线杀菌灯，能对包装材料进行消毒灭菌。
The ultraviolet ray light can sterilize the packing material.
机内装有紫外线杀菌灯，能对包装材料进行消毒灭菌。
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