The removal of （） from lubricating oil will reduce engine wear and possible breakdowns.
The words PIPE，BUTT，TUN AND PUNCHEON all refer to（）.
The fuel pipes and ducts should be blown with （）.
Large marine diesel engines of crosshead construction generally have two systems of lubrication: a total loss system feeding the （） and a recirculation system lubricating the running gear and cooling the piston.
The remaining oil in the lubricating pipes and ducts should be blown out with （）.
（）diesel engines generally have two systems of lubrication:（）a total loss system feeding and a circulating system lubricating the running gear and cooling the pistons.
A large valve，usually installed above the ram preventers，that forms a seal in the annular space between the pipe and wellbore or，if no pipe is present，on the wellbore itself is called the（）.
The outside diameter of the pipe is （） the diameter of the bore of the piston rod, the result being that an annular space formed between the piston rod and the pipe.
The film of oil between the rings and the liner is not only essential for the lubrication but also （） achieving a gas seal.
There should be a lubricating oil （） between the main beatings and the crankshaft.
In engines with system, the lubricating oil can be added to the engine through the filling hole in the crankcase cover, by using a hand oil can, or through the separator pipe（）
The oil mist detectors continuously（） the crankcase atmosphere, via a pipe system, and move it past a sensitive and accurate opacity measuring track.
（）continuously extract the crankcase atmosphere, via a pipe system, and move it past a sensitive and accurate opacity measuring track.
On most modern diesel engines, the main and connecting rod bearings receive their lubricating oil by （）.
The pipe friction and the resistance will （） as a result of an increase in the amount of fluid flowing through the system.
The replacement piping for diesel engine high pressure fuel systems must be the same length and diameter as the original piping to （）.
The successful operation of any engine or machine and （） depend on effective lubrication.
Oil is supplied to the cylinder wall and （） by means of mechanical lubricators.
There is a （） system lubricating the running gear and cooling the piston and sometimes lubricating the cylinders.
In the event of the cylinder starting valve leakage （） would pass into the air pipes and ignite the oil deposited.
All items such as steam pipes, exhaust pipes and fittings which, because of their location and operating temperature, present a hazard should be adequately lagged.That means the items should（）
The operating diesel generators will have their exhaust temperatures, cooling water and lubricating oil temperatures and pressures （） in much the same way as for the main engine.
All items such as steam pipes, exhaust pipes and fittings which, because of their location and operating temperature, present a hazard should be adequately laggedThat means the items should .
Beneath the streets of a modern city （) of walls, columns, cables, pipes, and tunnels
