气孔梯度分布,gradient pore distribution
1)gradient pore distribution气孔梯度分布
2)gradient distribution梯度分布
1.The flexural performance of steel fibergradient distribution reinforced concrete;纤维梯度分布混凝土的抗弯性能
2.Study on the variation of landscape pattern and thegradient distribution of wetland in the Xianghai Nature Reserve;向海自然保护区景观格局变化及湿地梯度分布特征研究
3.Gradient distribution of soil N,P,and K along the distance from Picea mongolica seedlings root surface;沙地云杉幼苗根表土体中NPK的梯度分布
英文短句/例句
1.Thermoelastic Analysis of a Functionally Graded Annulus With an Arbitrary Gradient任意梯度分布功能梯度圆环的热弹性分析
2.Three-dimensional bending analysis for simply supported functionally graded plate of arbitrary graded distribution任意梯度分布简支功能梯度板的三维弯曲分析
3.Parameter Rebuilding and Image Quality Evaluation of Optical System at Gradient Temperature温度梯度分布时光学系统参数重建与像质分析
4.IDENTIFICATION OF GRADED PROPERTIES OF FUNCTIONALLY GRADED MATERIALS BASED ON METALLOGRAPH基于金相图片识别功能梯度材料参数的梯度分布函数
putation of Influence of Suddent Temperature Lowering on Temperature Gradient"s Distribution of Asphalt Pavement突然降温对沥青路面温度梯度分布影响计算
6.Spatial Diversification Principle of Hunshan-Dake Sandl and Vegetation;浑善达克沙地植被空间格局与梯度分布研究
7.Effect of Carbon Fiber Gradient Distribution on the Electro-Thermal Properties of Cement Mortar碳纤维梯度分布水泥砂浆电热性能的研究
8.Research Advances in Altitudinal Gradient Distribution Pattern of Plant Species Richness at a Broad Spatial Scale大尺度空间上植物物种丰富度沿海拔梯度分布格局的研究进展
9.The good corresponding relationships among the SiC content, the microstructure and the mechanical property of the FGM are obtained.功能梯度材料的微观结构和力学性能等都与材料成分梯度分布之间有很好的对应关系。
10.Influence of High-Order Gradient on Strain Distribution of Nanofibers高阶梯度对纳米纤维应变分布的影响
11.The gradient distributions of the nutrient concentrations at the estuary and the adjacent sea are consistent with,that of salinity.在河口及其邻近海域营养盐的分布梯度与盐度的分布一致。
12.Characterization on Molecular Weight Distribution and Chain Segment Distribution of Gradient Copolymer via Atom Transfer Radical Copolymer;在ATRP中梯度共聚物的链段分布与分子量分布的表征
13.It has discussed the distributing disciplinarian and controlling factors of geothermal gradient.计算了地温梯度,探讨了分布规律和控制因素.
14.Study on Moss Distribution Law in Different Altitude on North Slope of Qilian Mountains祁连山北坡不同海拔梯度苔藓分布规律研究
15.NUMERICAL CALCULATION OF HIGH ORDER ABERRATION COEFFICIENTS OF RADIAL GRIN LENS梯度透镜折射率分布高次项系数的数值计算
16.Spatial distribution and ecological adaptability of wetland vegetation in Yellow River Delta along a water table depth gradient.水深梯度下湿地植被空间分布与生态适应
17.Studies on a New Kind of Medium with Spherical Gradient Refractive Index Distributing;一种新型球对称梯度折射率分布介质的研究
18.Distribution characters and gradient effect of species diversity of plant community in typical district of the arid valley in the upper reach of Minjiang River岷江干旱河谷植物群落分布特征及梯度效应
相关短句/例句
gradient distribution梯度分布
1.The flexural performance of steel fibergradient distribution reinforced concrete;纤维梯度分布混凝土的抗弯性能
2.Study on the variation of landscape pattern and thegradient distribution of wetland in the Xianghai Nature Reserve;向海自然保护区景观格局变化及湿地梯度分布特征研究
3.Gradient distribution of soil N,P,and K along the distance from Picea mongolica seedlings root surface;沙地云杉幼苗根表土体中NPK的梯度分布
3)distribution gradient分布梯度
4)stomatal distribution气孔分布
5)pore-size distribution孔度分布
6)gallium grading镓梯度分布
延伸阅读
气孔分子式：CAS号：性质：（一）stoma 植物气生部分的表皮小孔，用以进行气体交换。气孔是光合气体交换和在蒸腾作用中逸散水蒸气的主要途径。每个气孔被一对保卫细胞包围着。通过细胞膨胀改变细胞的形态，从而控制着气孔小孔径的大小。当保卫细胞膨胀低的时间，这两个细胞紧紧贴在一起，小孔就关闭了；而膨胀高的时间，小孔就张开。膨胀的变化，是由钾浓度变化引起的渗透反应，细胞内的水分进出的结果。（二）blow-hole 材料表层或内部由于气泡产生的洞穴。如焊接过程中，熔池金属中的气体在金属冷却以前未能来得及逸出，而在焊缝金属中所形成的气孔及存在于焊缝表面的气孔。可以是单个的或密集的，或是极小的圆气孔，也可以是较大的条状气孔，甚至可形成贯穿形大气孔。单个的小气孔对材料的力学性能影响不大，密集的或大个气孔则会减小截面，降低材料的力学性能，特别是韧性。分布于材料表面如气孔也对材料表面性能有一定影响。
