There is some choice as to the degree of decomposition which is suitable for a given problem . 对于一个已知的问题,剖分程度可以有不同的选择。
2.
Methods of soil investigations for agricultural engineering - field tests - part 12 : determination of degree of decomposition of peat 农业水利工程中土壤调查方法.野外试验.第12部分:泥炭