管道的等量长度中的摩擦损失即构成弯管中的压力损失.Friction losses in the equivalent lengths of ducts constitute the pressure loss in the elbow.对小半径弯管国产化的可行性,作了技术论证.The feasibilities of small - radius pipe - bender made in china are demonstrated ...
...the early stages of pregnancy.怀孕初期Much of his early work is concerned with the minutiae of rural life.他早期的许多作品关注的是农村生活中一些鸡毛蒜皮的琐事。By early yesterday, the insurgents had taken control of the country's main military...
肝硬化使门脉系统的肝内部分受阻.The cirrhotic process obstructs the intrahepatic portion of the portal venous system.这些合并症可能会有致命后果, 或可导致肝硬化.These complications may have a fatal outcome, or may lead to the development of cirrhosis.对于产生肝硬...