轮机英语打印版802单+50篇+60译（2023.05.24)

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Over-greasing of ball bearings installed on pumps will result in_____.

Which of the following modes of heat transfer does NOT require any physical contact between a warmer and a cooler substance?

Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?

The temperature of a refrigerant gas is the highest_____.

The latent heat of evaporation is dissipated in the_____ in a compression refrigeration system.

The compressor suction line conveys the refrigerant vapor from_____ to_____.

Sub-cooling increases the_____ of the refrigeration cycle.

The device, which is installed in the compressor suction line to prevent liquid from entering the compressor when hot gas defrosting, is called a_____.

_____ may be defined as the process of adding heat to an enclosed space to maintain its temperature above ambient.

_____ is the circulation and refreshing of the air in a space without necessarily a change of temperature.

When air cooling is in use it is good practice to keep all portholes, windows and doors_____.

The quantity of cooled air delivered by an air conditioning unit should_____ the sum of the quantity of air re-circulated to the unit and the quantity mechanically exhausted.

The principle of separation by which all commercially available oily water separators function is_____ differential between oil and water.

Oily water separators are used to ensure that ships don’t discharge oil when pumping out_____.

In an oily water separator the oil will travel_____ to the oil collecting spaces.

According to one of the annexes of_____, water that has to be discharged should contain less than 15 ppm of oil.

Because the flow rate of supply water pump is too large, oily water separator does not work well. Which of the following is not the reason?

The oil sludge is burnt in the_____ onboard. I’ll show you the ashes.

When an incinerator goes out suddenly, the_____ supply should be shut off quickly.

Disinfector used in the sewage biological treatment plant usually is_____.

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