同根派生 英汉例句By laser irradiation for the cephalic veins of the dogs, the interaction between vascular tissue, blood and the laser beam was analyzed.通过半导体激光对犬副头静脉进行血管内照射的临床试验，分析激光与血管组织及血液的相互作用，同时对激光血管内照射治疗静脉曲张的机理进行了研究。