prefabrication

prefabrication的英语例句

1. Piping erection work include: prefabrication placing aligning welding and bolting.

   管道安装工作包括: 预制加工、安置、对准、焊接和连接.

2. Our piping prefabrication workshop covers a total area of 1000 m 2.

   我们的管道预制加工厂拥有一千平方米的面积.

3. The meanings of factory prefabrication of petrochemical pipes were expounded.

   阐述了石油化工管道工厂化预制的意义.