By the use of X rays, doctors can see within the body.
医生用X光可以看到人体内部。
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In addition to electron microscopes, Thermo Fisher also makes a wide range of laboratory equipment such as centrifuges, incubators, x—ray and mass spectrometers, and in fact they make PCR systems that can be used to test for Covid 19.
除了电子显微,赛默飞世尔科技还生产各种实验室设备,如离心机、培养箱、X 射线和质谱仪,事实上, 他们还生产可用于检测 Covid 19 的 PCR 系统。