由于石油的主要成分包括饱和烃、芳香烃类化合物、沥青质、树脂类等，这些物质难以降解，并且对水生生物有毒杀作用。
The main components of oil are saturated hydrocarbons, aromatic compounds, asphaltenes, resins, and so on. It is difficult to degrade these substances which are bad for aquatic life.
以稀释平板计数法，测定了臭氧对水体和空气环境的消毒杀菌作用。
The sterilization of ozone to water and atmosphere was determined by dilution method of plate counting.
与碘相比，这种复合物的热稳定性明显提高，且能释放出元素碘，因而具有强的消毒杀菌作用。
In contrast to iodine, the thermostability of this complex has evidently increased, but it can release iodine molecular and has strong disinfection and sterilization.
结论杀菌型医用超声耦合剂对超声探头和受检皮肤具有明显的消毒杀菌作用。
CONCLUSION Sterilization medical ultrasound couplants can sterilize obviously on the ultrasound probe and the skin.
结论杀菌型医用超声耦合剂对超声探头和受检皮肤具有明显的消毒杀菌作用。
CONCLUSION Sterilization medical ultrasound couplants can sterilize obviously on the ultrasound probe and the skin.
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