The centrifugal pump is one combined structure of pump cover and integral volute and has one cast polyurethane elastomer lining in the fluid passing part.
其特征将离心泵分解成由泵盖及整体蜗壳组合结构，并在过流部位衬里一层浇注型聚氨酯弹性体。
2
The technology of shield tunnel is widely used in the construction of subway, although the test of integral shield tunnel lining is seldom carried on at home .
盾构技术在城市地铁建设中的应用越来越普遍，但国内关于盾构衬砌的整体试验做得较少。
3
The lining and the exterior fabric are actually produced as one integral layer, eliminating the need for additional adhesives or backings that can limit airflow.