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。
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。
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；
应用推荐