搜索结果: 1-2 共查到“畜牧学 Farmer”相关记录2条 . 查询时间(0.065 秒)
ASSESSMENT OF KOREAN FARMER’S EXPOSURE LEVEL TO DUST IN PIG BUILDINGS
pig building dust Korean farmer threshold limit values
font style='font-size:12px;'>
2010/12/23
The purpose of the study was to assess Korean farmer’s exposure level to dust in pig buildings and dust emissions by investigating airborne concentrations of total and respirable dust.
![](http://www.firstlight.cn/upload/imgfile/20070924c/82542a26011.gif)
Exploring farmer-herder relations and conflict management in Niger(图)
farmer-herder conflict management environmenta
font style='font-size:12px;'>
2006/11/27