A、A.cross connection line between two main fire lines
B、B.special wrench for the couplings in a fire hose line
C、C.tackle rigged to support a fire hose
D、D.None of the above
更多“A spanner is a （）.”相关的问题
A、cross connection line between two main fire lines B、special wrench for the couplings in a fire hose line C、tackle rigged to support a fire hose D、none of the above
A、cross connection line between two main fire lines B、special wrench for tightening couplings in a fire hose line C、tackle rigged to support a fire hose D、None of the above
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