Kev txiav txim loj los ntawm South African mining tuam txhabxav tau cov khoom ntawm 3000 meters siab -kub thiab hnav- tiv taus tshwj xeeb thermocouple hlau. Cov batch ntawm cov khoom tam sim no tau nkag mus rau theem ntau lawm.
Tsim los rau ib puag ncig tshwj xeeb ntawm cov mines nrog cov plua plav siab, muaj zog cuam tshuam, thiab cuam tshuam ntawm electromagnetic cuam tshuam, cov khoom siv hluav taws xob thermocouple no siv ntau -strand twisted hlau tsim, nrog rau txheej txheej ntawm nplaim taws- retardant thiab hnav- tiv thaiv tshwj xeeb rwb thaiv tsev. Qhov no zoo tiv thaiv qhov cuam tshuam ntawm ib puag ncig hnyav thiab ua tau raws li qhov ntsuas kub ntsuas qhov xav tau ntawm cov tshuab mining thiab khoom siv.
Thaum lub sij hawm tsim cov txheej txheem, hlau tsis kam thiab rwb thaiv tsev kev ua tau zoo yog nruj me ntsis tswj, nrog rau cov qauv kuaj ua txhua txhua 100 meters los xyuas kom meej ruaj khov thiab txhim khu kev qha khoom zoo. Tag nrho cov khoom yuav tsum ua kom tiav hauv ib lub lis piam.
