At the base of the groove, there is a single or double diameter hole, providing a sound path through the panel.

在该基地的沟，有一个单人或双人直径孔，提供一个良好的道路通过小组。

youdao

The correlations between seedling height, diameter at base, main root length, lateral root number and root range were analysed according to statistical principles.

根据统计学原理对一年生苗木苗高、地径、主根长、侧根数、根幅的测量数据进行了相关性分析。

youdao

Depending on the relationship between height (H) and diameter (D) of dominant trees, it takes the height of the dominant achieved at base diameter as the index of site quality estimation.

试图从优势木树高与胸径的相关关系入手，以优势木在标准胸径时所达到的树高作为评估地位质量的指标。

youdao