单选题A high temperature alarm or （） which will melt is used to guard against the explosion of compressor air pipelines.Aa flame trapBa relief valveCa fusible plugDa bursting cap
单选题
A high temperature alarm or （） which will melt is used to guard against the explosion of compressor air pipelines.
A
a flame trap
B
a relief valve
C
a fusible plug
D
a bursting cap
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