It is not only wear-resistant, but also of good gas permeability .

它不仅耐磨，而且具有良好的透气性。

To observe the effect of temperature on coal gas permeability, an experiment of coal gas permeability was carried out at different temperatures through a three-axial penetration instrument.

为得到温度对煤瓦斯渗透率的影响规律，在实验室通过改装三轴渗透仪，进行了不同温度条件下煤瓦斯的渗透率测定实验。

The membranes were characterized by SEM , TG, nitrogen absorption and gas permeability measurement.

氮吸附和气体渗透性能测试装置对其进行了表征.

Gas permeability and permselectivity of the inorganic membrane catalytic reactor have been investigated.

考察了气体在膜催化反应器中的渗透性能与分离性能。

The influence of confining pressure change and coal cleat on gas permeability is studied by experiments.

本文介绍了钏路煤层及相关割理系统的特性,通过试验研究了围压变化和煤层割理对气体渗透性的影响.

Metals are good electrical conductors with high strength and usually have not porosities for gas permeability.

金属是具有较高的强度、导热性和气密性的良导体。

Metals are good electrical conductors with high strength and usually have no porosities for gas permeability.

金属是具有较高的强度、导热性和气密性的良导体。

The chitosan-starch blend film were prepared by solution method, and the mechanical properties and gas permeability were studied in this paper.

以共混的方法制备了壳聚糖-淀粉共混薄膜，并对共混薄膜的力学性能、透气性进行了研究。