引发癌症的原因多种多样，包括放射线辐射、化学物刺激以及病毒感染等，不同个体对诱发癌症的外因有不同程度的抵制能力。
There are many different causes, ranging from radiation to chemicals to viruses; an individual has varying degrees of control over exposure to cancer-causing agents.
该技术是通过放射线照射或者使用化学方法使基因变异。
The technique has been to mutate the genes by irradiation or chemicals.
对比剂的渗漏为日常放射线学检查常见问题，组织反应之严重程度与渗漏对比剂的量、渗透压、化学成份有关。
The severity of tissue reaction to the extravasated contrast media depends on several factors: amount, osmolarity, and chemical components of contrast media.
停止接触放射线或其他化学毒物。
这三个病人均曾接受放射线治疗及化学治疗。
All of these three cases received local radiotherapy and systemic chemotherapy after surgery.
这三个病人均曾接受放射线治疗及化学治疗。
All of these three cases received local radiotherapy and systemic chemotherapy after surgery.
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