为了提高并行文件系统中对不连续数据的I/O性能，创建了一种新型高性能I/O方法：用户自定义文件视图结合合并I/O请求。

To enhance performance of discontiguous data access, a new high performance I/O method has been created: the user-defined file view and combination I/O requests.

youdao

So it's along the bond axis and it's between a carbon s p 2 hybrid, and then the hydrogen is just a 1 s orbital that we're combining here.

所以它是沿着键轴方向的,而且这里是一个碳sp2杂化轨道，和一个氢的1s轨道的结合,在这里我们可以合并他们。

麻省理工公开课 - 化学原理课程节选