Research on decremental treatment of dejecta on cattle farm .
奶牛场粪便减量化处理方法的研究。
Analyzing the causes of passenger train dejecta collecting device faults and the improvement suggestions .
对旅客列车集便装置故障的原因分析及改进措施。
Human dejecta , excrement , garbage , sewage , waste matter and ballast-water shall not be discharged or unloaded without permission of the inspection and quarantine authorities .
