Cov Hniav Tiv Thaiv Qhov Av
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Cov Khoom Siv Tiv Thaiv Zoo Tshaj Plaws hauv Kev Hnav Tiv Thaiv, Kev Ruaj Ntseg
Cov Ntawv Thov Cutterhead Blades: Cutterheads ntawm cov tshuab shield tunneling muaj cov hniav rau txiav cov pob zeb hauv av lossis av. Cov hniav no feem ntau yog ua los ntawm cov hlau tawv vim lawv qhov nyuaj thiab tiv taus kev hnav, ua rau kev ua haujlwm ruaj khov hauv cov xwm txheej hauv av nyuaj. Shield TBM Disc Cutters: Shield TBM disc cutters yog cov khoom tseem ceeb uas txhawb nqa thiab coj lub taub hau cutter, kom ntseeg tau tias kev nce qib ntawm cov txheej txheem tunneling du. Cov di...
