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trench excavator [trenʧ'ekskəveɪtə]
agric. 开沟机; 开沟器
dril. 挖沟机
tech. 挖坑机; 挖壕沟机; 挖沟权; 挖槽机
trench excavator
: 18 phrases in 3 subjects
Electronics3
Metallurgy1
Technology14