The remaining oil/water mixture now flows down into the fine separating compartment and moves slowly between the（） in the Turbulo separator.

The oil （） in the discharging water from oil water sepa...

单项选择题The oil （） in the discharging water from oil water separator exceeds 15 PPM without alarm, because the coil was burnt out.

The internal part of boiler should be cleaned by yard i...

单项选择题The internal part of boiler should be cleaned by yard if found （）.

At normal sea going, we use （） instead of donkey boiler...

单项选择题At normal sea going, we use （） instead of donkey boiler.