1) patchy contrast
斑块对比度
1.
We investigate the effect of patchy contrast on intraclonal division of labor and test the hypothe.
生境的斑块对比度,作为资源或环境异质性的主要素,在一定程度上决定克隆内分工的发生状况。
2) speckle contrast
散斑对比度
1.
It is confirmed by theory and experiment that: the key factors of increasing speckle contrast include the applying long wavelength laser and increasing object aperture angle of optical system,and selecting the suitable roughness of measured object surface.
理论和实验研究表明,增大激光波长和光学系统的物方孔径角,选择适当表面粗糙度的被测物体是提高散斑对比度的关键因素。
3) depth test block
深度对比试块
4) standard comparison hardness block
标准比对硬度块
5) Patch density
斑块密度
1.
The results show,the index of patch density is reduced,the index o.
结果表明:土地整理后斑块密度指数减少,景观多样性指数降低,破碎度指数减小,水田的优势度增高且更具有连通性;景观异质程度下降,景观类型有向单一化和非均衡化方向发展的趋势,景观中各类型斑块在空间上的分布也出现非均衡化。
6) patch scale
斑块尺度
1.
Finally, a represent community in the recovery stage, Leymus chinensis + Kalimeris integrifolia community, was analyzed to discover the change of community structure across three different patch scales, and clarified the maintenance mechanism of plant diversity on basis of plant taxon and ecological type.
最后以恢复阶段的代表群落羊草+鸡儿肠群落为研究对象,深入分析了3个斑块尺度上植物群落结构的变化,并通过植物区系和生态类型多样性的变化揭示了斑块生境中植物组成多样性的维持机制,并提出新的分析手段。
补充资料：X线对比度
X线对比度
影像学术语。均匀强度的X线穿过受检物体后产生的强度差异。X线对比度也称射线对比度。它
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