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| English | Chinese |
| bearing down | 分娩时屏气 |
| bearing down | 下坠感盆腔内 |
| bellying down | 腹部下垂 |
| clubbed down | 结节状绒毛由于母鸡缺乏核黄素引起的鸡胚胎绒毛异常现象 |
| clubbed down | 棍状绒毛 |
| down growth | 生长倒退 |
| down regulation | 抑制调节 |
| down regulation | 下调节使受体数量减少的现象 |
| down regulation | 降调节 |
| let-down | 射乳 |
| let-down hormone | 放乳激素 |
| letting down | 放乳 |
| milk let-down | 排乳 |
| milk let-down hormone | 放乳激素 |