Each nephron contains a tuft of capillary blood vessels (glomerulus) and tiny tubules that lead to larger collectingtubes.
一个肾单元包含一个毛细血管丛(肾小球)和一个细小的小管(肾小管)，进而引导到更粗大的收集管。
2
They cause all the welding of double tubes, joint boxes and gas-collectingtubes to realize the backing weld of TAW-P. The quality of the double tube waste heat boilers have been improved.