topsoils

英

美

(topsoil 的复数) n. 上层土, 表层土
topsoil的复数

双语例句

• The enrichments of Cd, Pb and Zn occur mainly in the urban area and agricultural topsoils in the plain region, which agrees with the high value area in the geochemistry maps in topsoils of Chengdu Basin.
  Cd、Pb、Zn元素的富集主要出现在平原区中部的城镇及农田区，与成都盆地浅层样地球化学图上的高值区一致。
• Relation between Sulfur and Magnetic Parameters in Xuzhou Urban Topsoils and its Environmental Significance
  徐州城市表层土壤中硫与磁学参数的关系及其环境意义
• Contamination of urban topsoils with metals is an issue all urban regions have to deal with.
  城市表层土壤中金属元素的污染必须加以控制。
• Assessments of agricultural eco-environmental quality of topsoils in Fuzhou City
  福州市表层土壤农业生态环境质量评价
• Finally, problems relating to an intensive study of the artificial environmental concentration coefficients of elements in topsoils are discussed and some helpful suggestions are put forward.
  最后探讨了深入开展土壤中元素环境富集系数研究的相关问题，并提出了建议。
• Distribution and Retention of Heavy Metals in Floodplain Topsoils of Le'an River
  乐安江河滩表层土中重金属的分布和残留分析
• As calculated according to the quadratic regression equation, the average amounts of copper and zinc were 0.747 ppm and 0.122 ppm in each gram organic matter per 100g topsoils ( 0& 20cm) respectively.
  用二元回归的方法，百克表土（0-20cm）中每克有机质含有效铜平均为0.747Ppm、含有效锌平均为0.122ppm；
• Distribution and origin of Cd, Pb and Zn in topsoils of plain region of Chengdu Basin
  成都盆地平原区浅层土壤Cd、Pb、Zn分布特征及其成因初探
• A preliminary study on the features of phosphate adsorption isotherm for some topsoils in Laiyang
  莱阳几种土壤磷等温吸附特性初步研究
• Microflora in Urban Topsoils in Shenyang
  沈阳市城市表土中微生物区系变化的初步研究