Tubes and pipes usually have DOll' uniform mechanical properties and dimensional irregularity generated by unsuitable manufacture processes and inappropriate fabrication treatments. Those nonuniformity and irregularity gives serious influences and damages Oil strength，secondary formability and other requiredrnfunctions of tubes and product made of them. In this paper nonuniformity and irregularity of tubes are investigated and their influences are discussed. In addition effective methods to amend such on uniformity and irregularity are proposed.
展开▼
机译：Impact of Languages and Accent on Perceived Speech Quality Predicted by Perceptual Evaluation of Speech Quality (PESQ) and Perceptual Objective Listening Quality Assessment (POLQA): Case of Moore, Dioula, French and English
