查询词典 porosity

The different head loss pattern was considered as the reason of that up-flow BAF had a longer operation time than down-flow BAF. Carbonate gravel (3～5mm) filter had a larger porosity and consequently had a longer operation time than that of ceramist filter.

试验中发现，上向流曝气生物滤池运行过程中水头损失呈近线性变化，而下向流曝气生物滤池的水头损失则在接近过滤终点时呈明显的指数式突跃增加，这是导致下向流曝气生物滤池运行周期比较短、反冲洗比较容易的主要原因。

Cerium oxide ; erbium oxide ; foam ceramics ; bending strength ; porosity ; thermal expansion

氧化铈；氧化铒；泡沫陶瓷；抗弯强度；气孔率；热膨胀性

The pore size and porosity character could be controlled by adjustment of the component.

再以磷酸氢二钠和磷酸二氢钠合成浓度为0.2 mol/L的磷酸钠缓冲液，作为固化液。

The main farmland soil types in Heilongjiang province are of white pulp soil, black soil, Chernozem, meadow soil. In this study, according the actual value of dry soil density, capacity soil moisture constant by weight, soil porosity with different soil in different vertical layers, applying statistical analysis method, to solve the internal relations among the three index above.

黑龙江省早作区耕地土壤主要类型有白浆土、黑土、黑钙土、草甸土，本项研究通过不同类型、不同层位土壤的比重、干容重、田间持水量、总孔隙率等的实测值，采用统计分析中回归分析方法，探索各项物理指标之间的内在关系。

The cooling rate is faster in chromite sand mold, but also causes more porosity in castings.

铬砂制作的砂模可让铸件有较快的冷却速率，但也产生较多的微孔隙。

The results showed that there were two kinds of defects,porosity and ill bonding in the laser multi-layer cladding.

结果发现，成形件内部存在两种类型的缺陷，即气孔和熔合不良。

Country. Production of glass fiber clapboard to the high porosity, low impurity content, capillary suction acid characterized by a high number of large customers alike.

1998标准。生产的玻璃纤维隔板以孔率高、杂质含量低、毛细吸酸高度大等特点受到多家客户的一致好评。

When the density of sample is low, the samples coefficient of thermal expansion is low, which may mainly because of the effect of porosity.

而在较低致密度情况下，孔隙率对材料热膨胀系数的影响占据了主要作用，因此试样的热膨胀系数较低。

The loessial porosity and collapsibility change undulationally in the vertical direction.

研究了黄土孔隙度和湿陷性在垂向上变化的规律和原因。

In this model permeability, porosity, compressibility is the function of? pressure.

在此模型中，渗透率，孔隙度、压缩系数均为压力的函数。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐