所以可以用下式来表示乙苯链转移.It is therefore possible to formulate the chain transfer with ethylbenzene as follows.主要考察温度变化对生物过滤塔净化含乙苯废气效果的影响.The effects of temperature change a biofilter for treating ethylbenzene.MgO改性提高对二乙苯选择性最为明显....
Severe shock can bring on an attack of acne.严重的惊吓会造成痤疮突发。A lot of teenagers develop acne.许多青少年都长粉刺.Doctors can treat acne with pills or creams.医生可用药丸或药膏治疗粉刺....