可变光圈 meaning in English
iris aperture
iris diaphragm
iris ring
Examples
- Conclusion : contrast - enhanced ultrasound demonstrates typical hemangioma imaging characteristics , that is , peripheral nodular contrast enhancement and iris - diaphragm sign in a high percentage of patients with undetermined lesions
结论：超声造影表现为典型的肝血管瘤影像学特点，即在绝大部分有不确定病变的病人中表现为周围结节性增强和可变光圈征。