1) radical exponent
根指数
2) root depth index
根深指数
1.
Compared with indica rice, the root system of japonica rice expands deeply into soil, its root dry weight rate below 20 cm depth is more than 15 percent, the root depth index is more than 10, whereas the root dry weight rate below 20 cm depth in indica rice is less than 10 percent, and the root depth index is less than 10.
根深指数对比结果同样表明了这一趋势 ,粳型水稻的根深指数一般在 10以上 ,而籼型水稻的根深指数一般低于 10。
4) root-knot index
根结指数
5) periapical index
根尖周指数
1.
The curative effects were evaluated based on clinical examination and radiographic assessment using periapical index(PAI).
采用根尖周指数(periapical index,PAI)评定X线片并结合临床检查,对疗效进行评价。
6) index of a radica
根式的指数
补充资料：根指数
1.数学名词。所求方根的次数，写在根号的左上角。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条