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?8508.How can it be determined that a vapor-cycle cool- ing system is charged with the proper amount of freon?

发布于 2021-02-18 22:11:12

【单选题】
A ?Air bubbles in the sight glass disappear.
B ?The compressor loads up and RPM decreases.
C ?Air bubbles appear in the sight glass.

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突突死这帮狗奏 2023-02-18

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