随着科学技术的发展，先进的医疗仪器大量的进入医疗系统，逐步代替了过去传统的诊断和治疗。然而，高精密度的仪器对使用环境有特殊的要求，为了确保仪器的性能，工作保障措施是必不可少的，屏蔽就是其中之一。去年，我院引进了价值六百万美元的设备，再加上原有仪器的调整，? With the development of science and technology, advanced medical instruments have entered a large number of medical systems and gradually replaced traditional diagnostic and treatment methods. However, high-precision instruments have special requirements for the use of the environment. In order to ensure the performance of the instrument, work protection measures are indispensable. Screening is one of them. Last year, our hospital introduced a device worth six million U.S. dollars, plus the adjustment of the original equipment.