Sometimes a characteristicgroup of signs accompanied a given disease.
有时一群特征性的体征会伴随着一种疾病。
2
And the relationship between characteristicgroup changes and adhesive joining strength was studied.
并对特征基团变化与粘接强度的关系进行了分析。
3
Representative elements of order Albaillellaria firstly appear in Silurian, which prosperous in Late Devonian, and extinction in end-Permian, is the characteristicgroup of Late Paleozoic Radiolaria.