Sadly, they only discover the gravity of their actions when they receive a zero grade on an important term paper or get kicked out of school.
悲哀的是，他们只有在重要的学期报告得了零分，甚至被踢出校门时，才会发现自己行为的严重性。
The emergence of these alternative compositions, as a form of social criticism clad in the humorous embrace of a willfully incorrect "zero grade, " has attracted its own share of analysis.
这些另类作文故意不合规范，幽默地接受了“零分”。 但它作为一种社会批评的形式，也受到了专门的分析。
Missing or late assignments will receive a "zero" grade in evaluating the homework contribution to the final grade.
在期末作业成绩部分，没交或迟交的作业将以零分计算。
By programming simulation, the single-grade and multi-grade circuits are analyzed, and it is the best moment for thyristor to switch on when the voltage of capacitor to be shorted is zero.
采用编程仿真的方式，对单级电路和多级电路分析后，提出了晶闸管开关最佳接入时刻为被短接电容电压为零时；
Both ammonium-oxidizing and denitrifying reaction in MBR accord to zero-grade reaction formula, and the corresponding degradation rate constant was 2.2 and 2.5 times respectively over CAS.
MBR系统中污泥的亚硝化、反硝化作用均呈零级反应，对应降解速率常数分别约为传统活性污泥的2.2倍和2.5倍；
Both ammonium-oxidizing and denitrifying reaction in MBR accord to zero-grade reaction formula, and the corresponding degradation rate constant was 2.2 and 2.5 times respectively over CAS.
MBR系统中污泥的亚硝化、反硝化作用均呈零级反应，对应降解速率常数分别约为传统活性污泥的2.2倍和2.5倍；
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