separation layer
- separation layer的基本解释
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离层
- 相似词
- 更多 网络例句 与separation layer相关的网络例句 [注:此内容来源于网络,仅供参考]
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However remarkable impacts were observed in the plantation in terms of community physiognomy,community structure,species composition,species richness,and biomass accumulation.1 Planting trees made community structure simple.Betula alnoidis plantation had three layers including a dominant arbor layer,a complex and well developed shrub layer and a poorly developed vine layer.The arbor layer contained few species and had a single layer.The mountain rain forest had 4 layers including the dominant arbor layer,shrub layer,grass layer and vine layer.The vine layer was well developed and very rich in species composition,and the arbor layer contained as many as 38 species that could be grouped into 3 layers.2 Sequenced by the important value,main species for the plantation and the nature forest were totally different,and the plantation had one dominant species while the nature forest contained many dominant species.3 Planting trees changed the community physiognomy.
但是人工种植西南桦林对群落的季相外貌、群落的结构、物种组成、物种丰富度以及生物量等方面有较大的影响。1人工造林使得群落结构简化,西南桦人工林的层次结构有3层,以乔木层占优势,并且有种类多而发达的灌木层,同时,藤本植物欠发达,但是乔木层树种单一,明显仅有一层;山地雨林的层次结构有4层,以乔木层占优势,还有灌木层、草本层和藤本植物,藤本植物种类多,十分发达;乔木层树种丰富,可达38种,乔木层还可分为3层。2人工造林较大程度地改变了群落的物种组成,根据重要值的大小排列,人工林和天然林的主要物种组成已经完全不同;并且人工林单优树种明显,而天然林就含有较多的优势树种。3人工造林改变了群落的外貌。
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Similarly, if the strong shear, which could suppress all the scattering in the quiescent two phase region, stopped, the follow-up phase separation also displayed characteristics of anisotropism and relaxation, In this dissertation, the transposed"butterfly'and"streakpattern were observed for the first time within the shear-history-influenced phase separation, which is found closely relevant to the anisotropical relaxation behavior of macromolecules. 5. The phase separation kinetics of PS/PVME under oscillatory shear was further studied on the base of that done under simple shear. It is found that, under specific temperature and strain amplitude, the occurrence of phase separation is strongly contingent on oscillatory frequency and only intermediate frequency could effectively induce phase separation; If all considered oscillatory shear could stimulate phase separation, a fixed frequency can maintain specific most probable phase size and higher frequency yields smaller phase, which makes a higher elasticity but weaker stress relaxation; Furthermore, higher frequency can produces stronger compulsory oscillation on the MPPS but won't change the mean of the MPPS. Under given frequency and strain amplitude, the phase separation kinetics dramatically depends on the phase angle of oscillation and the phase separation corresponding to different phase angle follows different dynamical process.
在简单剪切场下相分离动力学研究的基础上进一步对振动剪切场下PS/PVME的相分离动力力学进行了尝试性的研究,发现:在一定温度和振幅条件下,相分离的发生强烈的依赖于振动频率,只有中等频率的振动剪切才能有效地促进相分离的发生;在都能使相分离发生的前提下,一定频率的剪切能够使体系维持一定的最可几相尺寸,较高频率的剪切导致体系形成的相区尺寸较小,因而体系的弹性效应较强而应力松弛效应较弱;同时,更高频率的剪切对最可几相尺寸的强迫振动效应越强,但不会使最可几相尺寸的平均值发生改变;在一定的振幅和频率条件下,相分离的动力学过程会强烈地依赖于相位角,不同相位角对应的相分离遵循不同的动力学过程但机理一样。
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Using culture medium selection, diluted separation, plate lineration, centrifugal separation, capillary separation, droplet separation, pH separation, temperature separation, inhibitor separation and so on, ten species were obtained. There were Cyanophyta Nostoc punctiforme, Phormidium tenue, an undetermined alga; Chrysophyta Chromulina ovalis; Chlorophyta Cholorella ellipsoidea, Scenedesmus bijuga, S. quadricauda, Elakatothrix sp., Selenastrum minutum and Bacillariophyta Navicula sp.
采用培养基筛选法、稀释分离法、平板划线分离法、离心分离法、毛细管分离法、小滴分离法、pH值分离法、温度分离法、抑制剂分离法等9种不同方法,最终分离纯化出4门9属10种藻类,其中包括蓝藻门念珠藻属的点形念珠藻、席藻属的小席藻和一未定种;金藻门单鞭金藻属的卵形单鞭金藻;绿藻门小球藻属的椭圆小球藻、栅藻属的双对栅藻和四尾栅藻、纺锤藻属的一种、月牙藻属的小形月牙藻和硅藻门的舟形藻属的一种。
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absciss layer;abscission layer;separation layer:离层
離瓣花椰子屬(棕櫚科) Eleutheropetalum | 離層 absciss layer;abscission layer;separation layer | 離層帶(區) abscission zone
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boundary layer separation:边界层分离
boundary layer transition 边界层转捩 | boundary layer separation 边界层分离 | boundary layer thickness 边界层厚度
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boundary layer separation:边界层剥离
边界层再附着 boundary layer reattachment | 边界层剥离 boundary layer separation | 边界层厚度 boundary layer thickness
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boundary layer separation:边界层分流
"boundary layer separation","边界层分离" | "boundary layer separation","边界层分流" | "boundary layer stability","边界层稳定性"
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separation layer:离层
叶子的脱落和在紧靠叶柄基部形成的特殊结构--离层(separation layer)有关. 离层的薄壁细胞比周围的细胞要小. 木本双子叶植物的离层常先有细胞分裂,图7-40叶柄的离层新的细胞在落叶时受溶解的作用,这和离层及其临近细胞果胶酶和纤维素酶活性增加有关.
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