They experimented with new reagents and succeeded.
"他们用新试剂做了试验,获得了成功。"
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So this is vaccine needles, vials, testing reagents, testing swabs, as well as all the personal protective equipment that health workers are using, such as masks and aprons, as well as carers and the patients themselves.
这些包括疫苗注射针头、药瓶、检测试剂、检测拭子,以及医护人员使用的所有个人防护装备,如口罩和防护服, 还有护理人员和患者本人所的废弃物。