Demand for ultra-cold storage freezers has spiked as governments and manufacturers prepare to ship Covid-19 vaccines around the world and along the so-called last mile to those most vulnerable to the disease.
随着政府和制造商准备向世界各地运送新型冠状病毒肺炎（COVID-19，即2019冠状病毒病）疫苗，并完成所谓的最后一公里递送，让高危人群能够接种疫苗，对超低温冷冻箱的需求出现激增。
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