N deposition can acidify the soil and leaching the exchangeable base cations.
氮沉降能引起土壤酸化，同时造成土壤盐基离子淋失。
Under base employ of the coated urea, the total N concentration of farm surface water was near the contract level, and the possibility via runoff was very little.
结果表明，包膜尿素在基施情况下，田面水总氮浓度始终接近对照水平，通过径流损失的可能性很小。
The numerical simulations of the flow field around and aerospike nozzle cell were completed base on N S equations with Second order NND scheme.
从NS方程出发，采用二阶精度的NND格式对塞式喷管的流场进行了数值模拟。
The products from GTL include fuel oil, base oil for lubricant, and other chemicals, which are environmentally friendly due to their few S, N, metal, and aromatic hydrocarbon content.
GTL产品基本上由直链烷烃、烯烃组成，具有无硫、无氮、无金属、无芳烃等特点，是环境友好的油品和化学品。
This problem of a fifth power mean value computing formula of base 3 digits sum has been solved, and an exact calculation formulaA5(N)has been obtained.
主要解决了三进制之和函数五次均值的计算问题，得出了一个精确的计算公式。
This problem of a fifth power mean value computing formula of base 3 digits sum has been solved, and an exact calculation formulaA5(N)has been obtained.
主要解决了三进制之和函数五次均值的计算问题，得出了一个精确的计算公式。
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