| 1 | In the middle of Neolithic Age, our ancestors began to raise silkworms, obtain silk and weave silk fabric. | |
| 2 | Western modern sericulture was introduced into China in the late Qing Dynasty. | |
| 3 | The hospital buys silkworms at a high price, from which they can make medicine. | |
| 4 | The HVEF treatment for silkworm eggs was obviously a simple and low-cost technique for silkworm rearing and silk yield. | |
| 5 | The key to this paradox, Bell finds, is that women supplied most of the labor in sericulture. |