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If my sister ___ come, give her this letter.
If liquid freon should come in with your skin, you should ()
“If Winter comes, can Spring be far behind?” the quoted line comes from ________.
船舶保险是以各种船舶和水上辅助船体及其碰撞责任为保险标的的一种保险,船舶按航行区域可分为(),保险费依船舶种类、船龄、船行区域不同而不同。
Come and see me if you have time.()
If you're coming, please let me know()advance.
Sub-cooling is a method of reducing the temperature of the liquid refrigerant below its ().
“Flooding back” is a condition where the liquid refrigerant ().
If a refrigeration system were short of refrigerant, the condition would result in ().
Damage to cargo caused by fumes or vapor from liquids,gases, or solids is known as().
CFC refrigerants exposed to high temperature or direct flame, will decompose and may produce()
Would you rather come on Friday or Saturday?()
31. --- Can you come on Monday or Tuesday?
If a refrigeration compressor will not start, the reason may be ().
If liquid refrigerant accidentally comes in contact with the eyes, () immediately.
Some chloronated flourocarbon refrigerants may decompose into a toxic irritating gas if it is ().
Some refrigeration systems have chemical moisture indicators installed in conjunction with the sight glass in the liquid lineIf excess moisture is present in the system, the indicator will ()
()connectors hold best if a wire is accidentally pulled or a connection becomes loose.
The principal purpose of sub-cooling liquid refrigerant prior to its entering the expansion valve is to ().
In a compression refrigeration plant the refrigerant flows from the expansion valve and through the () where it absorbs heat from the space being cooled and becomes a gas or vapor.
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