环境中的磺酰脲化合物主要通过化学水解和微生物降解及少量的光化学分解而消失。
Sulfonylurea herbicide in the environment can be dissipated mainly through chemical hydrolysis and micro-degradation.
简要介绍了目前卫星姿控发动机的应用现状及发展趋势，提出了一种以光化学分解为基础的工作过程可控的固体姿控发动机新概念。
The status and tendency of attitude control motors for satellites is briefly described. A new concept solid propellant controllable motor for attitude control based on photochemistry is recommended.
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