“school bus safety”的概念、定义、翻译、参考文献-科学参考

单词	school bus safety
释义	school bus safety Encyclopedia 教育学农村教育释 school bus safety校车安全校车在行驶中避免或减轻事故危害程度，保障乘车学生、教师、司机等人员安全的状态。
随便看	proper orthogonal mapping proper orthogonal matrix proper orthogonal transformation proper pair proper pairing proper part proper plane proper point proper point of inflection proper polarization proper polynomial proper prefix proper principal minor proper product proper property proper quadric proper quadric curve proper quadric surface proper quasi-rotation proper quotient object proper range for macro-control proper rational function proper reference frame proper reference system proper refinement

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