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脉动振动
bridg.constr. pulsating vibration
oil pulsation vibration
脉 动 振动
: 25 phrases in 13 subjects
Automobiles3
Aviation1
Bridge construction2
Compressors1
Electric machinery1
Electronics1
Engineering geology1
Explosives and Explosive Ordnance Disposal1
Hydroelectric power stations5
Metallurgy1
Oil / petroleum1
Space2
Technology5