英汉例句

• the result showed that the soil nutrient content of artificial forest land in the region was at the low level.

  结果表明，黄土丘陵区人工林土壤肥力处于低水平；

• with the increase in slope, soil nutrient content and spatial variability all increases;

  随坡度的增加，土壤养分含量增加，空间变异性也增大；

• in addition, rational fertilization can maintain the soil fertility of artificial forest land of pinus kesiya var. angbianensis and even raise the soil nutrient content of the forest land.

  此外，合理施肥能够保持思茅松人工林地的土壤肥力， 以至提高林地土壤的养分含量。

• the composition of exchangeable cation and the soil nutrient content can be used as the indexes to evaluate soil chemical fertility evolution, especially the former is more important.

  交换性阳离子组成、养分全量及速效含量可作为评价红粘土红壤化学肥力演化的指标。

• it's well known that the traditional method of acquiring the soil nutrient content in laboratory analysis often spents a lot of time and labour.

  传统的野外调查与实验室分析获取土壤属性数据常常需要花费大量的人力、物力、财力和时间。

• abstract: in order to find out the variations of soil nutrient content infarmlan ds of guizhou, a survey of soil and fertilizer was conducted again in 1998, based on the survey results of 1985.

  文摘：为了解近年来化肥施用量倍增后，贵州农田土壤养分含量的变化，在1985年土壤调查的基础上，1998年再次进行了土壤和肥料调查。

• besides, the two systems were significantly different in soil nutrient content and soil physical and chemical properties.

  而且两者耕层土壤的养分含量和理化性质等指标也有明显差异。

• soil nutrients abruptly loss in the beginning stage of forest removal. after five years of forest removal, soil nutrient content reduces by 50%.

  土壤养分流失在开垦初期非常迅速 ，开垦耕种5a后 ，土壤养分含量可减少 5 0 %。