1.
Utilization of Residual N by Crops and Organic N in Surface-Mulched Soil on Dryland of North-Western China;
西北旱地残留氮的作物利用及覆盖土壤有机氮研究
2.
Control of Relict Element Titanium and Nitrogen in Alloy Spring Steel
合金弹簧钢中残留元素钛与氮的控制
3.
Effects of Nitrogen Fertilizer Regulation on Vegetables Nitrogen Utilization and Soil Nitrate-N Residue
氮肥调控对蔬菜氮素利用及土壤硝态氮残留的影响研究
4.
Effect of Different Nitrogen Rates on Nitrogen Utilization and Residual Soil Nitrate of Spring Maize
不同施氮水平对春玉米氮素利用及土壤硝态氮残留的影响
5.
Effects of nitrogen rate on nitrogen uptake and utilization of winter wheat and residual nitrate in soil under straw mulch
秸秆覆盖条件下不同施氮水平冬小麦氮素吸收及土壤硝态氮残留
6.
A method for the determination of agricultural chemical residues containing nitrogenous in tobacco leaves
GB/T13598-1992烟叶中含氮农药残留量的测定方法
7.
The Behavior of Residue Nitrate and Its Utilization by Plants in Agro-ecosystem;
农田生态系统中残留硝态氮的行为及植物利用
8.
Residual Nitrogen in Soil, Its Utilization and Influence Factors in Dryland;
旱地土壤氮素的残留、吸收利用及其影响因素
9.
Dynamics of Mineral N Residual in Dryland Soil and Its Affecting Factors;
旱地土壤残留矿质氮的动态变化及其影响因素
10.
Determination of Benzodiazepine Residues in Animal Tissues by Immunoassay Methods;
苯二氮卓类药物残留免疫分析方法的研究
11.
Study on Bioavailability of Residual Nitrate Nitrogen in Vagetable Soil
菜地土壤残留硝态氮的生物有效性研究
12.
Dynamics of Labeled Substrate N by Microorganism and Soil Clay Immobilized and Its Residue Fractions in Typical Paddy Soils in Dongting Lake Floodplain
洞庭湖平原典型水稻土氮素固持动态及氮的残留形态
13.
The solution was then sparged with nitrogen to remove any residual benzene or any chlorine formed in the oxidation step.
然后用氮喷射溶液，除去任何残留的苯和在氧化时生成的氯。
14.
3. As for nitrogen remainder in soils, the difference between the soil sylinders and the pots is remarkable.
3．关于氮肥的土壤残留，土柱模拟试验和盆栽试验差别较大。
15.
The Effect of N Fertilizer Applied on the Content of Soil NO_3~--N Remained and the Space Distribution of Winter Wheat Roots;
氮肥施用对冬小麦土壤残留NO_3~--N含量及根系分布影响
16.
Determination of residue of triazophos pesticide in aquiculture products by capillary gas chromatography
气相色谱-氮磷检测法测定养殖水产品中三唑磷的残留量
17.
Detection of organic phoshporus pesticides residues in influent and effluent water of sewage treatment plant by gas chromatography with nitrogen-phosphorus detector.
气相色谱法-氮磷检测器检测污水处理厂进出水中有机磷农药残留
18.
An asphyxiating mixture of gases, primarily nitrogen and carbon dioxide, left in a mine after a fire or an explosion.
爆后废气火灾或爆炸后，残留在矿井中的一种令人窒息的混合气体，主要含氮气和二氧化碳