Measured wetness of saturated steam plays an important role in the thermal efficiency and safety of condensing turbine. 濕蒸汽參數的準確測量，對汽輪機的經(jīng)濟性和安全性具有重大意義。
Due to the effects of inertia and diffusion, the droplets impact to the blades and deposit on the blade surface to form water film, when the wet steam flows in cascade passage. 濕蒸汽在葉柵通道內運動(dòng)時(shí)，由于慣性和擴散作用，水滴會(huì )撞擊并沉積在葉片表面上，形成水膜。
Steam is superheated by being heated above the temperature of saturated steam. 蒸汽被加熱到飽和蒸汽的溫度以上使之過(guò)熱。
