After partition the pipe into calculation cells, the sound velocity, fuel density, fuel pressure and flowing velocity at every calculation crunode in different time are gained.
The paper based on the researching of these methods, combining with the excellence of the grid and density methods, applying the adapter gird to grid partition.
本文在研究上述两类算法的基础上，结合网格和密度算法的优点，把自适应网格技术应用到网格划分上。
3
The amyloplast usually possessed a larger, very low electron density starch grain which mainly was long shuttle and there were some higher electron densitypartition or wedge structure in it.