Vim li cas kev siv bolts?

 

Hauv kev tsim kho tshuab thiab tsim kev tsim khoom, taug kev sib txuas ntawm cov khoom siv sib txuas, tab sis kuj cuam tshuam nrog kev yooj yim thiab kev nyab xeeb ntawm kev kho .

Dab tsi yog aTaug Bolts?

Tsuas yog muab tso, nws yog ib qho ntawm cov ntsia hlau tsim los ua ib qho kev sib txuas nrog ib txoj kev sib tw los yog coverding-tsau "

Vim li cas kev siv bolts?

Hauv qee cov txheej txheem tshuab, qhov feem yuav tsum tau kho lawv cov haujlwm nyob rau hauv ib qho kev xav tau thiab sib sau ua ke, thiab cov khoom siv hluav taws xob tsis sib haum, thiab kho kom haum thiab hloov kho.

Txij li thaum nws tsim xyoo 2008,Gnee Rail tau ib txwm tsom rau kev tsim khoom thiab kev xa tawm ntawm kev sib tw nrawm xws li cov tsheb ciav hlau {}} Cov tuam txhab muaj cov neeg siv khoom lag luam ntau dua 160}}