This difference was their rough estimate of the impact of the effect of bad weather.
这个差别是他们不精细地估计恶劣天气影响的结果。
2
The two equations differ only in the definition of the Y term, but this difference can make a significant difference in the outcome of an estimate.
两个方程式只在Y项的定义上有差别，但是这个差别将使估算结果产生很大不同。
3
The optic method, which based on the difference of the refractive indexes between carbon dioxide and air, estimate leaks according to principles of Schlieren and Shadow-graph.