1) ecological gradient
生态梯度
1.
The effect of the ecological gradient on the economic productiona of Zea mays L.
本文定位、定量研究了生态梯度对玉米（ＺｅａｍａｙｓＬ。
2.
Two ecological gradient axes (EGA) were suggested: EGA(CA) and EGA(r2).
应用典型相关的原理和技术,将多元地理坐标和生态因子降维成1元,研究提出2个生态梯度轴(EGA);EGA(CA_1)和EGA(r~2)。
3.
By the methods of TWINSPAN and DCCA,this paper studied the ecological gradients of the plant communities in South Lüliang Mountains,in terms of the interactions between plant species and communities and environmental factors.
采用TWINSPAN分类和DCCA排序法,从植物种、植物群落与环境因子之间的相互关系,对吕梁山南段植物群落的生态梯度进行了研究。
2) Ecological field gradient
生态场梯度
1.
Ecological field gradient of Anewolepidium chinense under different population densities and its dynamic characteristics;
不同种群密度羊草生态场梯度及其变化特征
3) vegetation ecology gradients
植被生态梯度
5) morphogenetic gradient
形态发生梯度
6) morphological gradient
形态梯度
1.
Traveling-wave starting algorithm based on morphological gradient and wavelet transform modulus sum
基于形态梯度与小波变换模之和的行波启动元件
2.
On the basis of basic morphological transforms and their combined modes,transient current signals can be extracted by use of morphological gradient with adaptive weighting.
在分析数学形态学基本形态变换及其组合形式的基础上,利用自适应方法实现形态梯度自适应加权组合,在提取高频暂态电流信号的同时,可有效抑制随机噪声的影响。
3.
This paper presents a novel algorithm of identifying the inrush current and short circuit current caused by internal fault on the basis of transient detection using morphological gradient, meanwhile transient current signals are extracted by use of morphological opening and closing algorithm.
提出了一种识别变压器励磁涌流和短路电流的新方法,该方法在利用数学形态梯度进行边沿检测的同时,采用形态开闭运算有效地提取出高频暂态电流信号。
补充资料：昆虫个体生态学(见昆虫生态学)
昆虫个体生态学(见昆虫生态学)
昆虫个体生态学见昆虫生态学
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