volatile sulfur meaning in English

挥发硫

At night our immunity of body falls down . virtually all cases of bad breath are caused by volatile sulfur compounds vscs
因为人们在晚上睡觉时，免疫功能下降，口腔内细菌大量孳生所致。
Test method for determination of total volatile sulfur in gaseous hydrocarbons and liquefied petroleum gases by ultraviolet fluorescence
紫外线荧光测量法测定气态烃和液化石油气中挥发性硫总含量的试验方法
Standard test method for determination of total volatile sulfur in gaseous hydrocarbons and liquefied petroleum gases by ultraviolet fluorescence
紫外线荧光法测定气态烃和液化石油气中挥发性硫总量的标准试验方法