Substantial density, absolute dry density and porosity of bamboos from 10 species of bamboos were studied.
本文对10个竹种竹材的实质密度、绝干密度和孔隙度进行了研究。
The relationships between the theoretical density and porosity of the composites and the repetition cycle are discovered.
从理论上揭示了复合材料的浸渍-裂解周期与材料的理论密度和理论孔隙率之间的关系。
Once roller compaction is completed for each layer, apply rapid test of the density and porosity with a nuclear densimeter…
每层碾压完毕，用核子密度仪快速检测压实密度和孔隙率，…
The effects of powder granularity, pressure, additives content on the density and porosity of porous specimens were studied.
研究了粉末粒度、制坯压力、添加剂含量等工艺参数对多孔铝合金密度及孔隙率的影响规律。
Effect of foaming time on the density and porosity of foam aluminum was discussed in detail. Evolution of pores in the foaming process was described, and the foaming mechanism was analysed.
详细讨论了发泡时间对泡沫铝密度、孔隙率的影响，描述了发泡过程孔结构的演变过程，并对发泡机理进行分析。
Limestone will have the same porosity measurements, whereas a wet sandstone will cause the neutron porosity to read low and the density porosity high.
石灰岩具有相同孔隙度测量值，而湿砂岩将导致中子孔隙度的读数偏低，密度孔隙度读数偏高。
Shale and dolomite will cause the neutron porosity high and the density porosity low.
泥岩和白云岩导致中子孔隙度的读数偏高，密度孔隙度的读数偏低。
It is theoretically considered that reservoir gas-bearing makes interval transit time porosity and density porosity increase and neutron porosity decrease.
理论上认为，储层含气使声波时差孔隙度和密度孔隙度增大，使中子孔隙度减少。
And the velocity of slow compressional-wave (P-wave) is in direct proportion to the porosity and the density of fluid.
而慢纵波的速度则和孔隙度和流体的密度成正比。
Physical property parameters including velocity, density and resistivity have relations to the porosity of the sedimentary rock.
沉积岩的物性参数包括速度、密度和电阻率等，它们与孔隙度是有联系的。
A method for evaluation of low porosity dolomite reservoir using lithology density and compensated neutron logs is presented in this paper.
本文介绍一种用岩性密度和补偿中子双孔隙度法评价低孔隙度白云岩气藏的方法。
The porosity gradient of porous aluminium is mostly affected not only by the spontaneous stacking density of granules, but also by the infiltration pressure gradient and solidification sequence.
多孔铝合金的孔隙率梯度主要是由渗流驱动压力梯度与凝固顺序所决定，而颗粒的自然堆积密度影响相对较小。
The apparent porosity and water absorption were the lowest, the bulk density and heat-resistant property were the highest after dipping for 4 times.
材料性能随浸渍次数增加而优化，浸渍4次的显气孔率和吸水率最低，体积密度和热稳定性最高。
The composite green body is characterized by sufficient strength for demoulding, high density homogeneity, appropriate porosity and little dimensional change rate.
坯体具有足够的脱模强度、较高的密度均匀性和合适的孔隙率以及尺寸变化率小等特点。
The result shows that the compressive strength at normal temperature of impregnated samples is raised in varying degree, their bulk density is increased and the porosity is decreased.
制得高强度耐火粘土砖的试验结果表明：浸渍处理后的试样，常温耐压强度均获得了不同程度的提高，体积密度增加，气孔率下降。
The effect of the current density and fuel cell temperature, humidified temperature of cathode and anode, porosity of porous diffusion layer on the results mentioned above are discussed.
讨论了质子交换膜燃料电池运行电流密度和温度、阴极和阳极加湿温度、气体扩散层孔隙率等参数对以上结果的影响。
The porosity, bulk density and cold crushing strength of the refractory samples were determined.
讨论了气孔率、体积密度和常温耐压强度与电熔氧化镁加入量之间的关系。
An amende nt should decrease bulk density increase toltal porosity and incr ease water and air content.
改良剂能降低容重，增加总孔隙度，增加水和空气的含量。
Natural soft clay is characterized with high water content, high porosity, low density, low strength and high compressibility etc.
天然软土地基具有含水量高、孔隙比大、密度小，强度低、压缩性高等特点。
In an area, reflection amplitude depends on velocity and density, which depend upon the porosity and elastic modulus of rocks.
一个地区的油气层的反射振幅大小是由该区的速度和密度决定的，而这两种物性又取决于岩石的孔隙度和弹性模量。
The porosity and permeability of matrix, and the width, density and direction parameters of fractures were obtained by core analysis, well logging, seism and thin section observation methods.
利用岩心分析、测井、地震、薄片分析等静态描述手段测试并计算了基质的孔隙度和渗透率，得到裂缝的宽度、密度和方位等参数。
Rainfall makes the soil density and disperse coefficient increased and porosity decreased.
降雨能使火烧迹地的土壤密度和分散系数升高、孔隙度下降。
The use of U3O8 additive can improve the pellet microstructure, but result in decrease of pellet density and increase of open porosity, which contributes strongly to moisture.
采用U_3O_8添加剂可改善芯块微观结构，但同时使芯块密度下降，开口孔隙度增加进而导致吸湿加剧。
Performance is mainly determined by the soil physical properties, soil density, moisture, porosity, clay content and the forest root such as other factor.
其性能主要是由土壤密度、水分、孔隙度、黏粒含量等土壤物理性质以及森林植物根系等因子决定。
Geochemical pyrolysis-FID Logging can measure the total hydrocarbon contents, estimate oil density, and calculate oil saturation when combine with reservoir porosity and rock density.
热解地化录井可以检测储集层含油气总量，推算原油密度值，结合储集层孔隙度值和储层岩石密度，经过换算可得出含油饱和度。
It was measured that the density, area percentage and average diameter of porosity and mechanical properties of ADC12Z die castings under the different casting pressures.
测定了不同铸造压力下adc12 Z压铸件密度、孔洞面积百分比、孔洞平均直径及力学性能，研究了铸造压力对ADC12 Z压铸件孔洞和力学性能影响。
Then, the bulk density, porosity, the type of pore, particle constitute and organic carbon in the soil affected the soil moisture diffusivity.
土壤颗粒组成、容重、有机质、孔隙率影响土壤持水性能。
Then, the bulk density, porosity, the type of pore and clay content in the soil affected the soil moisture diffusivity.
土壤容重、孔隙大小、孔隙类型及土壤颗粒组成中粘粒含量对土壤水分扩散率都有一定的影响。
The analysis result shows that velocity and density can sensitively reflect the change of porosity, and the velocity ratio can sensitively reflect the change of saturation.
结果表明，波速度、介质密度对孔隙度的变化较为敏感，速度比值对饱和度的变化较为敏感。
The analysis result shows that velocity and density can sensitively reflect the change of porosity, and the velocity ratio can sensitively reflect the change of saturation.
结果表明，波速度、介质密度对孔隙度的变化较为敏感，速度比值对饱和度的变化较为敏感。
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