null plane plane

例句：

1. 1.The computer's memory is full,so there's no room for moredata.
   电脑内存满了，所以没有更多数据的空间。
2. 2. The report states that the projecthas been nullified due to budget constraints.
   报告称由于预算限制，该项目已被取消。
3. 3. The nullhypothesis suggests that the results areinconclusive.
   备择假设表明结果无法确定。