触点式分电器触点间隙一般为() mm.。
A.0.50~0.60
B.0.30~0.35
C.0.35~0.45
D.0.45~0.50
A.进气0.28mm,排气0.58mm
B.进气0.36mm,排气0.69mm
C.进气0.25~0.30mm,排气0.30~0.35mm
D.进气0.30~0.35mm,排气0.35~0.4mm
A.进气0.28mm,排气0.58mm
B.进气0.36mm,排气13.69mm
C.进气0.20~0.30mm,排气0.30~0.35mm
D.进气0.30~0.35mm,排气0.35~0.40mm
筛网的孔眼通常小于4mm,一般为()。由于孔眼细小,当用于城市污水处理时,其去除BOD5的效果相当于初沉池。