| 1. | And virtually no one today outside of the small , esoteric field known as the history of technology has heard of john gorrie , james harrison , alexander kirk , or ferdinand carr , the pioneers of refrigeration in the mid - nineteenth century
制冷发明对农业很重要，但我们的正统的历史却不得不把食物制冷进一步延伸到其他行业，比如，铁路业的冷藏车。然而在今天，除了一个小小而又深奥的技术史领域，几乎没有人听到过 |
