Terms containing scroll-case

Subject	English	Chinese
hydroel.st.	scroll case access	蜗壳进人孔
el.	scroll case access	蜗壳进入孔
hydroel.st.	scroll case drain	蜗壳排水管
hydroel.st.	scroll case manhole	蜗壳进人孔
hydroel.st.	scroll case vent	蜗壳通气管