secondary nutrient
英 [ˈsekəndri ˈnjuːtriənt]
美 [ˈsekənderi ˈnuːtriənt]
网络 次级营养素
双语例句
- The complicated relations between vegetation properties, vegetation and soil are mainly represented in: ( 1) close relationship between composition properties of the secondary vegetation and sharp variation of the relationship between nutrient elements in the soil;
植被性状、植被与土壤复杂关系主要体现在：（1）次生植被类型的物种组成特性间相关性较大；土壤各营养元素含量之间的相关性变化较大； - With increasing age of secondary forests, uptake, accumulation and return of nutrient elements increased, the intensity of litter fall decomposition increased and the speed of material cycling was quick.
次生林随林龄增大，营养元素的吸收、贮存、归还量增大，土壤微生物对凋落物的分解强度增强，物质循环速度加快。 - The cocoon is the main form of the secondary productivity of tussah-feeding oak plantation. Its nutrient output level has a greater effect on the internal nutrient cycling in the tree.
同时叶部养分向树体转移能力较强。柞蚕林二级生产力是以收获蚕茧为主要形式，其养分输出水平对系统的养分平衡产生的影响主要表现对树体养分内循环方面。 - As primary and secondary foods, faba bean is important in nutrient enrichment and health-improvement.
蚕豆作为主副食品，对强化营养，增进健康有重要作用。 - With the secondary treatment of wastewater was popular in our country, organic pollution was improved in rivers and lakes. But the eutrophication, which induced by excessive discharge of nutrient, became the major problem in water system.
随着我国污水二级处理的普及，江河湖泊的污染程度逐渐得以改善，由营养盐氮、磷过量排放引起的水体富营养化问题上升为主要矛盾。