In this paper the diffraction intensity of crystal containing vacancy was studied by using the scattering matrix method. The vacancy is considered as a rigid ball. And a "vacuum body" ...
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vacuum body film 真空体膜
Conclusions The application of vacuum body film can decrease the leeway of placing and improve the accuracy of radiotherapy.
结论真空体膜的应用能减少摆位误差，提高肿瘤放射治疗精度。
Vacuum bag and body frame were used. CT simulation location and three dimensional treatment plan were used.
采用真空袋及体部定位架，CT模拟机定位和三维治疗计划。
Vacuum chamber is the main body of a space environment simulator.
真空容器是大型空间环境模拟器的主体结构系统。
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