raing

raing

1

Then this thesis uses yield spread and pricing model to validate the effectiveness of the internal raing .

然后通过信用利差及定价模型验证了内部评级的有效性。
2

The results showed that the total discharge of phosphorus from the surface drainage of farmland in Taihu-Lake region was 440 . 4 t / a in a raing year as 1987 , and 299 . 9 t / a in a dry year as 1988 .

实验结果表明，雨水较丰富的1987年，苏南太湖流域农田地表排出磷的总负荷量为440.4t/a，而较为干旱的1988年为299.9t/a。