chimney

Development of tubular air-breathing direct methanol fuel cell;

管状空气自呼吸直接甲醇燃料电池的研制

The progress in technique of tubular dense mixed conducting membrane preparation is reviewed.

介绍了管状致密透氧膜加工工艺研究进展。

Weaving technology of tubing fabric applied on trenchless inversion lining pipeline rehabilitation technology;

应用于非开挖翻衬法管道修复技术的管状织物织造工艺

The tubing fabric,the anti-seepage film and the resin and the composite technology are introduced,and the different application performance of the tubing plain weave,tubing weft pile weave and tubing warp knitting is analyzed.

阐述了管状织物、防渗膜及树脂材料的选择及其复合工艺,分析了管状平纹织物、管状纬起绒织物和管状经编针织物的不同应用性能,也对管状纺织复合材料进行了物理性能与耐化学腐蚀性能测试。

In this paper,the dispersive characteristics of guided waves propagating in tubular structure are described,and the .

为此,对导波在管状结构中的传播特性进行了阐述,分析了其频散现象对导波检测技术的不利影响,并以导波在电站管道和锅炉受热面的实际检测为例,研究了激发超声导波的不同方法和对频散的影响,分析了导波检测中的模式选择和频散抑制方法。