含水量大于20%时，腐熟度对粉碎度的影响增强。

Maturity has great effect on grinding degree when water content is more than 20%.

youdao

含水量大于20%时，腐熟度对粉碎度的影响增强。

Maturity has great effect on grinding degree when water content is more than 20%.

youdao