单选题The loss of （） from an air compressor could lead to an overheated air discharge and possibly an explosion in the pipelines leading to the air reservoir.Alubricating oilBcompressed airCcooling waterDsealing ring
单选题
The loss of （） from an air compressor could lead to an overheated air discharge and possibly an explosion in the pipelines leading to the air reservoir.
A
lubricating oil
B
compressed air
C
cooling water
D
sealing ring
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