1、Objective: Comparing to the purify machine with the ultraviolet ray air in the way of disinfect.
目的：比較凈化機與紫外線空氣消毒效果的優(yōu)劣。

2、The ultraviolet ray can hurt our skin badly.
紫外線會嚴重損傷我們的皮膚。

3、The ultraviolet ray light can sterilize the packing material.
機內裝有紫外線殺菌燈，能對包裝材料進行消毒滅菌。

4、Objective: To prepare and observe sunscreen effect against ultraviolet ray of the sunscreen Cream.
目的：研制防曬霜乳膏，觀察該乳膏對紫外線的防護效果。

ultraviolet ray翻譯