A.清刷、換漿、清槽 B.換漿、清槽、清刷 C.清槽、清刷、換漿 D.清刷、清槽、換漿
A.4%~10% B.3%~6% C.4%~6% D.3%~10%
A.1m B.1.5m C.2.0m D.2.5m