crown-rump length

例句：

1. 1. The crown-rump length of the new caris 4000 mm.
   这款新车的冠状物长度为4000毫米。
2. 2. The crown-rumplength of the new car is 4000 mm, which is shorterthan that of the old model.
   这款新车的冠状物长度为4000毫米，比旧款短。
3. 3. Thecrown-rump length of the newcar is 4000 mm, which is shorter than that of theold model. The crown-rumplength of the old model is 5000 mm.
   这款新车的冠状物长度为4000毫米，比旧款短。旧款的冠状物长度为5000毫米。