The separating effect of oil separator is not very good, the reason may be _____ 。
A too little seal water
B improper gravity disc
C oil discharging pump not working very well
D low water level of the working water
相关试题
-
The separating effect of oil separator is not very good, the reason may be _____ 。
-
The time of discharging oil is short, and oily water separator discharges oil frequently. The possi
-
be lowest in the summer. Spring appears to be the best period of the year for thinking．One reason
-
metimes the simplestexpressions of concern are the______(4)meaningful,While it is good to be encoura
-
His performance the mathematics exam is not very good.