Dab tsi yog qhov tshwm sim ntawm marble txiav tshuab?

Marble txiav tshuab yog tam sim no siv dav siv pob zeb txiav tshuab hauv Suav teb. Txij li xyoo 1970s, kev lag luam pob zeb tau siv marble mining thiab txiav tshuab ua cov cuab yeej tseem ceeb rau kev txiav pob zeb. Dab tsi yog qhov kev ua yeeb yam ntawm marble txiav tshuab?
Thawj qhov tshwm sim yog tias qhov flatness ntawm lub rooj tsavxwm nyob rau hauv txoj kev sawing ntev tshaj qhov kam rau ua, uas yog hu ua sab laug thiab txoj cai dabtsi yog khoov.
Qhov thib ob manifestation yog lub flatness sib txawv ntawm lub sawing tob upward, uas yog hu ua up and down bending.
Qhov thib peb manifestation kuj tshwm sim heev, uas yog ib txhij tshwm sim ntawm nce thiab nqis dabtsi yog khoov thiab sab laug thiab txoj cai dabtsi yog khoov, hu ua mixed dabtsi yog khoov.