When ordering other than standard Butt Welding end valves, specify schedule of pipe end and give complete data concerning style, figure number and contour of weld end.
如果订购其它标准的对焊连接的阀门，请告知管道管壁厚度标准，以及种类、型号和焊接端轮廓等参数。
Through the comparative analysis between ordinary facial feature vector and the standard value of perfect human face, the main factor of the imperfect face is imperfect facial contour.
经过普通人脸特征向量与完美人脸标准值的比较分析，得出人脸不完美的主要因素是人脸轮廓的不完美。
Through the comparative analysis between ordinary facial feature vector and the standard value of perfect human face, the main factor of the imperfect face is imperfect facial contour.
经过普通人脸特征向量与完美人脸标准值的比较分析，得出人脸不完美的主要因素是人脸轮廓的不完美。
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