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Answer;
If a large amount of lubricant is removed from a system during refrigerant recovery is normal for an expansion valve/receiver dryer type.
Refrigerant recover is meant to remove refrigerants from cooling equipment using machines according to EPA standards. Refrigerant recover machines are used by Technicians before repairing or performing maintenance on air conditioners, freezers or refrigerators.
Answer:
Well bias means like making somthing sound maybe better or worse in your favor. For example a soccer team looses and you put it like the other soccer team cheated, that would be bias.
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I believe it is the last choice, "and dares to claim the sky..."
It shows that the bird has a daring, or brave character.
~Elisabeth