Unsaturated loess in natural sites loses stability as the overburden load continuously increases.Traditional soil modifi......

　　Traditional pesticide application in grapevines causes large losses to the air and the ground, particularly in early......

Rare events such as nucleation processes are of ubiquitous importance in real systems.The most popular method for nonequ......

目的 研究手术室空气微生物污染状况与采样方法.方法 采用平板暴露法和采样器法分别对不同类型手术室进行空气采样.结果 用采样器......

采用6种空间分布型聚集度指标,测定了斑须蝽成虫、若虫、卵等3种虫态在玉米田的空间分布型.研究表明,斑须蝽3种虫态在玉米田中均呈......