1) corona shape
冠部形状
1.
According to the design theory of DBIT,the development of a method for blade corona shape design and tooth arranging of reamer is described in the paper.
借鉴金刚石钻头的设计理论,针对随钻扩眼器切削刀翼的特殊性,提出了一套专门适用于液压控制式双向随钻扩眼器刀翼冠部形状设计与布齿的理论及方法。
2) crown profile
树冠形状
1.
Crown profile models, including branch diameter, branch length, angle of origin, and branch chord length, were developed from branch attributes and tree variables.
基于枝条着枝深度 (DINC)和林木变量所建立的树冠形状模型包括 :基径、枝长、着枝角度和弦长等预估模型。
2.
Models for simulating locational distribution of total branches, both along and around the bole, and for estimating crown profile of primary branches within live crown were developed in a 26-year-old Larix olgensis plantation based on the circular branch analysis technique.
对于某一株树来说主要枝条的这些变量均随着着枝深度(DINC)的增加而增加，而对于不同大小的树木，影响树冠形状和结构的因子可由树高和胸径两个变量综合体现出来。
3) semi-round nose
半圆形冠部
4) Coronary vessel anomalies
冠状血管畸形
5) coronary anomalies
冠状动脉畸形
1.
Classification and incidence of congenital coronary anomalies in adults;
成人先天性冠状动脉畸形的分类及其发生率
补充资料：冠部
1.指吏部。古代中央官制设六部，以吏部为首。故称。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条