1) area-based leaf nitrogen content
单位重量叶氮含量
2) mass-based leaf nitrogen concentration
单位面积叶氮含量
3) leaf nitrogen content
叶氮含量
1.
The change processes of the leaf area (LA) and leaf nitrogen content (LNC) during the ripening period were analysed with 11 varieties of japonica rice.
为探明不同寒地水稻品种成熟期叶片衰老过程的差异 ,试验分析了 11个寒地水稻品种成熟期叶面积和叶氮含量的动态变化过程。
4) Leaf nitrogen content
叶片含氮量
1.
Study on photosynthetic capacity and leaf nitrogen content of main secondary forest-forming species in Heilongjiang Province;
黑龙江省次生林主要组成树种光合能力与叶片含氮量研究
2.
It indicated that the wavelength bands related to leaf nitrogen content selected by regression equation located at 820-1100nm and 1150-1300nm.
对可见光至短波红外波段 (35 0— 2 5 0 0nm)冬小麦田间冠层光谱反射率与叶片含氮量间的关系进行了相关分析。
3.
It indicated that the spectral reflectance of wave band had significant correlation to leaf nitrogen content at 350-732,733-940 nm and 1 970-2 477 nm.
对可见光波段至短波红外波段(350~2500 nm)棉花田间冠层光谱反射率与叶片含氮量间的关系进行了相关分析。
5) leaf nitrogen concentration
叶片氮含量
1.
Quantitative relationship between leaf nitrogen concentration and canopy reflectance spectra in rice and wheat;
稻麦叶片氮含量与冠层反射光谱的定量关系
6) leaf nitrogen content
叶片氮含量
1.
The fluorescence parameters of the 1st, 2nd, 3rd and 4th leaves from the top of culms in two rice varieties (Huajing 2 and Wuxiangjing 9) were measured with FMS-2 at different growth stages under three nitrogen levels, and the leaf nitrogen contents were correspondingly determined by destructive sampling and chemical assay.
在3个供氮水平和2个水稻品种(华粳2号和武香粳9号)的田间试验条件下,测试分析了不同处理水稻顶部4张完全展开叶片氮含量及对应的荧光参数。
补充资料：单位重量剩余功率
单位重量剩余功率
specific excess power
式中、H为飞行高度，5百尸值的大小，直接反映飞机上升性能和水平加速性能的优劣，常用作衡量飞机机动性能优劣的一个重要参数。(刘芳)danwei zhongliang shengyu gongl位单位重量剩余功率(specific exceSSpower)一匕机剩余功率(△N)与重量(G)之比。飞行中发动机推力(尸)与飞行阻力(x)之差为剩余推力(梦)，剩余推力与飞行速度(V)的乘积为剩余功率。单位重量剩余功率可用如下公式表示: sEP一掣一卑擎一⑦一夕·v -一1一G一G一G如果式中阻力(X)是对应于速度(V)的平飞阻力们业i尸就是飞机以速度(V)上升时的上升率。它的物理实质是表示飞机在该飞行状态下，单位时间所能增加的机械能，也就是飞机单位重量能量伍次子)随时间的变化率，即: d厂E、d厂__V“、dH VdV 一}畏阵干}H+一l=一于十一.一 d才又G)一d‘又”’2、少一d‘’g一d‘
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条