The results showed that as compared with direct current, revense pulse plating could obviously decrease porosity of nickel deposits.
结果表明，适当的脉冲参数可以明显降低镀层孔隙率。
In general, smaller grain size and greater angularity tend to increase the porosity while an increase in range of particle size tends to decrease porosity.
通常，颗粒越小曲率越大孔隙度越大，而当颗粒尺寸增大时孔隙度会减。
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。
Decrease of sandstone porosity is mainly caused by compaction and cementation, which contribute 22% and 15% to the loss of primary pores, respectively.
压实作用和胶结作用是砂岩孔隙度降低的主要原因，分别造成22%和15%的原生孔隙丧失。
The test results show that the porosity of sandstone decrease with the increasing effective stress at the fixed temperature level, following the law of negative exponent.
试验结果表明，在温度水平一定的条件下，砂岩的孔隙度随有效应力的增加而呈负指数规律减小；
The compactionand secondary enlargement of quartz lead to the great decrease of primary porosity of clastic rocks, and dissolution is contributed to the formation of secondary pore space.
压实作用和石英的次生加大使碎屑岩的原生孔隙度极大的降低，溶解作用是次生孔隙形成的主要因素。
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。
Ofmaize components of the increase and decrease the porosity of the surface, this limits the ink on the paper of capillarity.
粘合剂成份的增加，降低了表面的孔隙率，这将限制了油墨在纸张中的毛细作用。
With increasing sintering temperature and time, the pore size and porosity decrease, and the shape of the pore turns into sphere.
随烧结温度的增加与时间的延长，多孔钛的孔隙尺寸和孔隙度随之减小，孔隙形状从不规则向规则球形转变。
When the sand grout contains limestone powder, the limestone powder can improve the pore structure and decrease the porosity of the sand grout because of its filling effect.
当砂浆含有石灰石粉时，由于石灰石粉具有填充效应，能有效地改善砂浆的孔结构，降低其孔隙率。
Many experiments show that: when a well produces oil from a reservoir, the porosity and permeability will decrease, as fluid pressure drops, especially for reservoirs with abnormal high pressure.
大量实验表明：当油藏生产原油时，随着地层中流体压力的降低，油层的孔隙度和渗透率下降，特别是在异常高压油藏中尤为显著。
This paper deals with mechanism of the decrease of the mobility of a polymer solution when it flows through a porous medium by means of resistance factor and porosity factor.
本文从阻力系数与孔隙系数角度出发，研讨了聚合物溶液在砂岩孔隙介质中降低流体流动度的机理。
The results show that lengthening holding time leads to the decrease of ultimate residual porosity.
结果表明：随着保温时间的适当延长，能有效地降低复合材料的残余气孔率；
The results showed that high peak value and long transfer time are helpful to decrease the porosity in the aluminum casting.
研究发现，热解产物传输曲线峰值高、传输时间长，有利于减少铝件的针孔。
The results were attained in the experiments: by using the method of ultrasonic vibration treatment, the value of porosity volume is decrease obviously.
研究结果表明，采用超声波振动处理的方法，可显著地降低铸锭内的含气量。
Igneous rock with strong magnetic susceptibility, leading to strong internal magnetic field gradient, and to T2 spectrum forward and NMR porosity decrease.
火成岩具有强磁化率，导致火成岩孔隙内部产生强磁场梯度，使火成岩的核磁测井T2谱发生前移、核磁孔隙度减小；
The results showed that the porosity and water capacity of collagen sponges decrease by adding chitosan, increase by adding chondroitin sulfate, but no effect by heparin.
结果表明：添加壳聚糖后胶原海绵的孔隙率和吸水率下降，添加硫酸软骨素后上升，而添加肝素后无明显变化。
The results showed that the porosity, the gas flux and cross-bending strength decreased, and the pore size distribution had a decrease with the increasing of sintering temperature.
结果表明：随着烧成温度的提高，孔隙率、气体通量及抗弯强度下降，孔径分布变宽。
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。
With the increasing of mass fraction of PEG, membrane porosity and pure water flux become larger, and the maximum tensile strength and elongation at break of the membrane criterion decrease gradually.
随着PEG质量分数的增加，膜孔隙率与水通量变大，最大拉伸强度、断裂伸长率等力学性能逐渐减小。
The porosity and flexural strength of the material decrease with the rising of the aggregate particle size;
随着骨料粒度的增大，材料气孔率降低，抗弯强度降低；
The results show that the porosity and water absorption decrease and the bulk density and bending strength increase, along with the sintering temperature raising and the time prolonging.
结果表明：随着烧结温度的升高和保温时间的延长，气孔率和吸水率减小，体积密度和弯曲强度升高；晶粒长大填充气孔，使多孔材料孔隙率下降而强度增加。
The results showed that the filtering efficiency was improved with the increase of filter's porosity under constant Re number and with the decrease of Re value under constant filter's porosity .
结果表明：在雷诺数一定的情况下，增大过滤器的孔隙率，则过滤效率增加；
The pressure drop is increasing with fill porosity decrease.
而伴随着孔隙率的减小，其流动阻力逐渐增大。
The remnant intergranular pores were filled with this kind of late calcite cement, which leads to a great decrease of the effective porosity.
这种后期的方解石胶结物主要充填剩余粒间孔隙，使储层的有效孔隙度大大降低。
The remnant intergranular pores were filled with this kind of late calcite cement, which leads to a great decrease of the effective porosity.
这种后期的方解石胶结物主要充填剩余粒间孔隙，使储层的有效孔隙度大大降低。
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