1) mowing frequency
割草频率
1.
Effects of mowing frequency on soil microbial quantity and plant underground biomass in Leymus chinensis steppe.;
割草频率对土壤微生物数量和植物地下生物量的影响
2) clipping number
割草频次
1.
Effect of different clipping number on Leymus chinensis grassland in the Songnen plain of China.;
不同割草频次对松嫩平原羊草草地生产量的影响
3) Cutting frequency
刈割频率
1.
Used three single factor trials which are different cutting frequency, fertilizer condition and plant density, by the mensuration of fresh grass yield, dry grass yield and the number of branches to found the planting technology of Stylosanthes Guianensis cv.
通过不同的刈割频率、施肥条件和种植密度3个单因子实验,测定其鲜草产量、干草产量和分枝数,以探索热研5号柱花草的栽培技术,结果表明:对柱花草生物产量影响最大的是刈割频率,而种植密度和施肥水平对其产量的影响不显著。
2.
Used three single factor trials which are different cutting frequency, fertilizer condition and plant density, Mensurate fresh grass yield, dry grass yield and the number of tillers for found the planting technology of Pennisrtum purpureumxp typhoidevm cv.
通过不同的刈割频率、施肥条件和种植密度三个单因子实验,测定其鲜草产量、干草产量和分蘖数,以探索热研4号王草的栽培技术,结果表明:对王草生物产量影响最大的是刈割频率,而种植密度和施肥水平对其产量的影响不显著。
4) frequency-segmentation
频率分割
1.
And a frequency-segmentation method suitable to high dynamic environment and with short acquisition time is proposed.
该方法采用一种频率分割的方案,将大的多普勒频偏分割为若干小频率段,每个频率段并行处理,采用等待式的数字相关处理办法,各自完成相关积累和视频积累,并经过自适应门限判决,输出同步信号检测脉冲,完成伪码的快速捕获。
5) knife frequency
割刀频率
6) extreme temperature on growth
剪草频率
1.
The cutting height, cutting frequency as well as extreme temperature on growth are discussed.
在禾本科植物生物学特性的基础上 ,论述了剪草的生物学意义和剪草技术 ,并根据作者的实践经验 ,提出了禾草草坪的剪草高度和剪草频率。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
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