The quantity and quality of radiotherapy professionals, especially the radiation engineers should be improved as soon as possible.
但放疗机构和治疗设备区域分布不合理,放疗机构人员的数量和质量都亟待提高,特别是高素质放射物理师;
2
Because of the continuous decay, the quantityof radioactive material and the rate of emission of radiation decrease steadily.
由于连续衰变的结果,放射性物质的数量,辐射发射率都逐渐下降。
3
The abnormalities in quantity, morphology and function of cells, especially the excessive apoptosis, might be the important mechanism of delayed wound healing induced by radiation.