TBM
English
    
    Noun
    
TBM (plural TBMs)
- (engineering) Initialism of tunnel boring machine.
- 2022 December 14, Paul Stephen, “HS2's Dorothy starts to dig second tunnel bore”, in RAIL, number 972, page 23:- Four other TBMs are currently in the ground, digging twin bore tunnels under the Chilterns and in Greater London.
 
 
German
    
    Pronunciation
    
- IPA(key): /teː beː ˈʔɛm/
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