查询词典 porosity

With the same of characteristics between solid and porous microchannel evaporator, that pressure drop rises with the increase of volume flow rate and heat flux, the latter's pressure drop will rise up around 30% to 260% as porosity increases.

在压降方面，相较於传统微流道蒸发器压降除了随著流量以及热通量的增加而上升外，多孔性结构微流道蒸发器的压降也会随孔隙度的增加而上升。

The results showed that the fractal dimension of wood cell lumen distribution could he as an important parameter to characterize the porosity of wood.

结果表明：腔径分布分形维数的大小可以作为表征木材多孔性的一个参数。

Though simulations on abated effect of nylon net with different porosities on wind-blown sand in wind tunnel, the aim of this paper is to research the relationship between sand transporting and nylon net porosity and wind velocity.

通过对不同孔隙度尼龙网对风沙流减弱作用的风洞模拟实验，旨在探求输沙量与孔隙度和风速二者之间的关系，从而为防沙新材料的开发、野外工程防沙的优化设计及其应用提供理论依据。

The chemistry compatibility of the electrode and electrolyte at high temperature and effects of the sintering temperature on the microstructure and electrochemical properties were investigated, respectively. The results showed the sintering temperature has effect on the polarization resistance of the electrode. At moderate temperature, a fine microstructure with moderate porosity and well-necked particles has been formed, and the electrode gave the lowest polarization resistance.

考察了电极材料与电解质材料在高温时的化学相容性；研究了烧结温度对电极的微观形貌及电化学性能的影响，结果表明，烧结温度过高或过低都会导致电极极化面电阻的增加，当电极的烧结温度适中时，电极表面粒子有一定的烧结连接，并且有一定的多孔结构，电极的极化面电阻达到最小值。

The cause of weldmetal porosity is the contaminations of hydrogen in the weld metal.

焊接金属中的氢污染是造成焊接金属的多孔性的原因。

Porosity can occur anywhere in the weld metal or the base metal.

气孔能在焊缝金属或母体金属中的任何地方产生。

The permeability coefficient and porosity of rock are updated by volumetric strain.

岩石基质渗透系数和孔隙率通过体积应变进行更新。

Porosity is defined as the ratio of the void space in a rock to the bulk volume of that rock multiplied by 100 to express in per cent.

从油藏工程的观点来看，孔隙度是岩石最重要的特性之一，它用来量度岩石中用以储存石油烃类物质的有效空间。

Of the large volume following valve 600Lb using forging and welding, the valve is not caused by casting porosity, loose, and many other defects, and greatly reduce the waste Globe Valves of free forging materials, economy greatly improved.

对批量较大的600Lb以下的闸阀采用模锻，并进行焊接，阀门没有因铸造而造成气孔、疏松等诸多缺陷，并大大减少自由锻的材料浪费，经济性大为提高。

The favorable conditions for petroleum accumulation due to volcanic activity and igneous rocks formed during the activity show in two aspects. A The contact surface of igneous rocks and the surrounding sedimentary rocks, like a vertical unconformity surface, formed the conduit of petroleum migration.Petroleum would accumulate once it encountered a trap in which the reservoir had fine porosity and permeability. B It formed a trap barriered by igneous rocks, or changed or cut the original trap.

火山活动以及由此形成的火成岩体对油气聚集的有利条件主要体现在两个方面：一是沿火成岩与围岩的接触面构成油气运移的通道，火成岩与围岩接触，似一直立的不整合面，与孔渗性好的岩层组合不仅能使油气运移而且遇有圈闭油气还会聚集成藏；二是构成火山岩遮挡的圈闭，或是对原有圈闭进行改造、分割。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。