The relation between air permeability andair permeability and porosity are discussed.

Acid and Basic Resistance, porosity permeability of the pot without water seepage.

耐酸碱, 锅体气孔透气且不渗水.

Impacts of storativity and porosity on the head potential fluctuation are investigated in this paper.

本文也同时检查饱和土壤储水系数及孔隙率对地下水水头扰动的影响.

The porosity and permeability of rock are related directly to grain size and sorting characteristics.

颗粒大小和分选性对岩石的孔隙和渗透率有直接关系.

The most protruding question of carbonate reservoir are extremely strong unhomogeneity and dual porosity model characteristics.

碳酸盐岩油藏最突出的问题是极强的非均质性和双孔隙网络特征.

This paper gives a research on the bubbles and porosity in solid cement stone in detail.

本论文对水泥石中的气泡及孔隙情况进行了详细的研究.

Resistance to flow may be high enough to cause microvoids and porosity.

流动阻力可能太高,从而导致微孔和多孔.

This quantity describes the retention of particles in a porous substance.

这个参数描述阻留在多孔体中的微粒量.

Hygrometers based on porous materials are neither accurate nor quick response.

以多孔材料作成的湿度计既不准确,响应又慢.

The water slowly drained away, down through the porous soil.

水慢慢流走了，渗入了疏松的土壤。

Experiments with the porous plate exhibIt'somewhat less scatter in the results.

用多孔板所得的实验结果则显得散布程度小些.

He added sand to the soil to make it more porous.

他往土里掺沙子以提高渗水性能.

Most soils and rocks are porous.

大部分土壤和岩石都是多孔的.

The soil is porous.

土质疏松.

This is the porphyria, a rare genetic disease.

这就是卟啉症了, 一种罕见的遗传疾病.

The porphyrin chemistry is one of the most important areas of modern chemistry.

卟啉化合物的合成及应用是现代化学重要的研究之一.

Porphyrin and its derivatives were excellent organic semiconductor materials and theyreceived considerable attention in recent years.

卟啉及其衍生物是一类具有优良的光电性能的有机半导体材料,引起人们广泛的关注.

Applications of porphyrin in fluorophotometric analysis are reviewed. It presented with 67 references.

总结了卟啉类试剂在荧光光度分析中的应用情况,引用文献67篇.

The porphyrin chemistry is one of the most important research areas of modern chemistry.

卟啉化学是现代化学领域中重要的研究分支之一.

The fluorescence intensity of porphyrin also relates to the substituent positions on the phenyl groups.

此外,荧光强度还与卟啉的苯环上取代基的取代位置有关.

Synthesis and OLEDs in Investigation of Red Color Electroluminescent Porphyrin Complexes.

稀土及铅镉卟啉配合物的制备分离和性质研究.