lRi
- 网络下呼吸道感染(lower respiratory infection)；leaf rolling index
lRilRi
下呼吸道感染(lower respiratory infection)
0～2岁：上呼吸道感染（URI）6次/年，或下呼吸道感染（LRI）3次/年； 3～6岁：上呼吸道感染7次/年；或下呼吸道感染2次/ …
leaf rolling index
..., the morphology and the leaf rolling index (LRI) of semi-rolled leaf plants were close to that of non-rolled leaf plants.