n.膨胀，扩大，扩张

The doctor performed a dilatation of the coronary artery to improve blood flow.
医生进行了冠状动脉扩张手术以改善血流。
The cervix requires a gentle dilatation before inserting the intrauterine device.
在放置宫内节育器之前，需要对宫颈进行温和的扩张。
In preparation for childbirth, the obstetrician monitored the gradual dilatation of the cervix.
为分娩做准备，产科医生监测了宫颈逐渐扩张的过程。
The patient underwent a balloon angioplasty procedure resulting in dilatation of the narrowed artery.
患者接受了球囊血管成形术，导致狭窄的动脉得以扩张。
Dilatation of pupils is a common symptom after consuming certain types of drugs or experiencing head trauma.
吞食某些药物或遭受头部创伤后，瞳孔扩大是一种常见症状。
The cardiologist recommended a percutaneous transluminal coronary angioplasty for the dilatation of plaque-occluded arteries.
心脏病专家建议采用经皮冠状动脉腔内成形术来扩张被斑块阻塞的动脉。
During lung examination, the physician observed a significant dilatation of the bronchi, indicating possible chronic obstructive pulmonary disease (COPD).
在肺部检查期间，医生观察到支气管显著扩张，这可能是慢性阻塞性肺疾病（COPD）的症状。
The technique of balloon dilatation has been widely used in treating esophageal strictures.
球囊扩张技术已被广泛应用于治疗食道狭窄。
There was marked dilatation of the veins in his lower legs due to long-term standing and poor circulation.
由于长期站立和血液循环不良，他的小腿静脉明显扩张。
After the procedure of prostate gland dilatation, the patient reported significant relief from urinary symptoms.
经过前列腺扩大的手术后，患者报告尿路症状有显著缓解。