海词手机词典

Methods The removal of fecal E. Coli and ascarid eggs on attic type composting latrine was assessed,and the removal of salmonella bacteriophage 28B was studied,according to sanitary standards for the non-hazardous treatment of night soil.

播放读音 播放读音

以上内容独家创作,受著作权保护,侵权必究

海词词典,十七年品牌