porosities
英 [pɔːˈrɒsɪtiz]
美
n. 孔隙度; 孔隙率; 疏松
porosity的复数
双语例句
- Field soils often have bulk densities ranging from 1.0 to 1.4gcc; with commensurate porosities and infiltration characteristics.
田间土壤的容重常在1.0到1.4克／立方厘米范围内，且具有均匀的孔隙度和渗透性。 - This paper is concerned about water dynamics in overlying soil with filling layers of different porosities by simulation experiment.
通过充填柱模拟实验研究了充填复垦中充填层物料孔隙度大小对覆土层含水量变化的影响。 - The main reasons for the lower tensile strength when welding by one side are that the filler metal can not totally enter the bottom of the weld and there are porosities at the root of weld.
对于单面焊接接头，由于填充材料难以进入焊缝内部及根部存在气孔加剧了拉伸强度较低的程度。 - A series of simulative experiments have been done using wood cribs with different porosities and heights in order to study the effect of combustible configuration on combustion process of tunnel fire.
采用木垛火作为火源，比较添加与未添加助燃剂两种情况下其燃烧特性，研究助燃剂对可燃物燃烧特性的影响。 - Influence of Adding Re-melting on Porosities of Spray-welding Coating on Titanium Alloys Surface and Cause of Porosities
钛合金表面火焰喷焊涂层中气孔的成因及增加重熔对气孔的影响 - Intermediate arrays have porosities falling between these limits.
中间的排列方式，孔隙率介于这两个值之间。 - Study of Mechanical Property and Energy Absorption Capacity of Foam Aluminum with Different Porosities and Pore Diameters
不同孔隙率及孔径泡沫铝的力学与吸能特性研究 - What is more, asteroid porosities may have been even greater immediately after they accreted from the debris of the early solar system.
更重要的是，小行星在刚由早期太阳系里的碎片聚合而成时，孔隙率可能更大。 - The reasons of porosities production and process instability in CO2 laser welding shipbuilding T-section aluminum alloy are also discussed.
同时，讨论了船用铝合金T型材CO2激光焊接过程中产生气孔和过程不稳定的原因。 - It is well known that bed porosities are greater near the bounding surface. Colonic Cancer: Multi-slice Spiral CT Findings and Their Role in Preoperative Staging
众所周知，靠近边界表面的床层自由空间率较大。结肠癌的多层螺旋CT表现与临床病理对照研究 - In this paper, the effect of HIP on the porosities and properties of two spray formed superalloys, K17 and GH742, has been investigated.
研究了热等静压工艺对喷射成形K17和GH742两种高温合金显微疏松和室温拉伸性能的影响。 - The results revealed that the porosities of porous composite scaffolds were all over 90%.
结果显示，制备的复合多孔支架孔隙率均在90%以上； - Aluminum alloys are metals sensitive to weld porosity. On the base of welding procedure tests, the sensitivity of two kinds of aluminum alloys to porosities and the influences of welding process and the shielding gases on the porosities appearing in the aluminum welds are researched.
铝合金是最容易形成焊缝气孔的金属，本文在焊接工艺试验的基础上，分析了铝合金焊接对气孔的敏感性及焊接工艺方法和保护气体对铝合金焊缝中气孔的影响。 - Effects of re-impregnation and pyrolysis cycles of resin on the density and porosities of green and the micrograph and mechanical properties of C/ SiC were studied.
研究了树脂浸渍&裂解对C/C素坯密度和气孔率的影响规律，分析了树脂裂解碳对C/SiC显微形貌和力学性能的影响。 - It is found that the shrinkage porosities can be avoided by using chills or other chill materials.
现行大桨的铸造工艺常常难以消除热节处的缩松、缩孔，因而，应当采取措施如使用冷铁或其他激冷材料，控制大型螺旋桨铸件的凝固顺序。 - A large number of numerical tests are performed on the breakwaters with different porosities and different block radius.
对不同孔隙率、不同块体粒径的抛石防波堤进行了大量的计算。 - Porous silicon layers of different thickness and porosities are obtained using anodization method via controlling the hydrofluoric acid concentration, current density and time. The thick porous silicon layers are oxidized by a two-step oxidation method.
实验过程中通过控制阳极氧化反应中HF溶液的浓度、电流密度和反应时间形成了不同厚度和孔隙度的多孔硅厚膜，并采用两步氧化的方法得到氧化多孔硅厚膜。 - The products with different strengths, thicknesses and porosities have different performance of erosion-resisting and vegetation protection.
不同强度、厚度、开口尺寸的网垫产品的抗冲刷与植被性能是不一样的。 - The rules of pressure change are discussed when the deformation parameters and double porosities parameters change in the models, and the typical pressure curves under several different conditions are plotted, which provide theoretical bases and well testing methods for oilfield development.
本文还对变形参数和双重介质参数变化时压力的变化规律进行了讨论，给出了几种情况下的典型压力曲线图，这些结果为油田开发提供了理论依据和试井方法。 - A method of network model, simulating properties of rock porosities, is introduce in this article.
本文简短地介绍了近年来提出的一种模拟孔隙岩石弹性性质的方法：网络模型方法。 - A calculation method for apparent porosity difference is proposed. By using this method, theoretic values of carbon dioxide and hydrocarbon in formation are obtained when a certain gas and formation with different porosities exist.
给出视孔隙度差值的计算方法，并使用该方法计算出了在一定含气饱和度、不同的孔隙度的条件下，地层中分别存在二氧化碳和烃类气的理论值。 - Besides effects of coating thickness on porosities and the composition and structure of coating were studied.
此外，还研究了镀层的厚度对孔隙率的影响以及镀层的成分、结构。 - Densities and open porosities of the composites were investigated by Archimedes method and microstructures were studied by OM and SEM. XRD was used to identify the crystal phase of the composites.
对这种材料的密度和气孔率进行了表征，并通过XRD，OM和SEM等方法对其相组成、显微结构和反应机理进行了研究。 - Influences of different porosities in SiC powder source on as-grown crystal are investigated.
研究了SiC粉料的空隙率对晶体生长的影响。 - By means of laser surface remelting and adding rare-earth elements to the alumina coatings, the residual porosities were eliminated, cracks were reduced and so that not only the quality of the coating was improved, but the corrosion resistance of the coatings was improved significantly.
通过采用激光表面重熔和在氧化铝涂层中加入稀土的工艺方法，封闭了表层中残存的孔隙，减少了微裂纹，不仅提高了涂层的质量，而且使其耐蚀性得到明显提高。 - The paper studied the influence of foaming temperature and foaming time on the porosities and cell size of samples.
其次，分析了发泡过程中发泡温度和保温时间对孔隙率及孔径的影响； - Unhealed porosities and free surface of dendrites with crystalline steps were occasionally observed in aluminium alloy forgings.
铝合金锻件中有时有未锻合的疏松和残留的枝晶自由表面，并保留有原始的结晶台阶。 - Porous silicon with different pore sizes and porosities can be used as functional and structural layer and sacrificial layer in different MEMS.
具有不同孔径尺寸和孔隙率的多孔硅在不同的MEMS中可作为功能结构层和牺牲层。 - The porosities have great influence on their compressibility and energy absorption.
孔隙率对其压缩性能和能量吸收性能有很大影响。