Objective To detect whether the make of the low melting-point lead block coincides with the request of routine radiation treatment and check the quality control of this method.
目的：检验低熔点铅挡块的制作是否符合常规放射治疗的要求及其质量保证和质量控制的方法。
Objective To detect whether the make of the low melting-point lead block coincides with the request of routine radiation treatment and check the quality control of this method.
目的：检验低熔点铅挡块的制作是否符合常规放射治疗的要求及其质量保证和质量控制的方法。
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