internal bevel bottom是什么意思

用法例句

The design of underwater beveling machine was put forward, laying of seabed oil & gas pipelines installation and service.

设计了专门用于海底油气输送管道安装、维修的水下坡口机。

Multiple flow direction algorithm with flow partition scheme based on downslope gradient;

水流分配策略随下坡坡度变化的多流向算法