用低能X射线反散射法测定泥炭的灰分含量
Determination of the content of ash in peat by using low energy X-ray backscattering method
与其他地区泥炭相比，敦化泥炭属于中等偏低灰分泥炭；
The ash content of peat in Dunhua belongs to low to middle grade ;
泥炭灰分