1. Kev teeb tsa yeeb nkab
Thaum txhim kho cov kav dej, nws yog ib qho tsim nyog yuav tau txais kev pab ntawm lub tshuab vuam. Lub sijhawm no, lub raj xa dej vuam tshuab yog ib qho cuab yeej. Thaum tib neeg tab tom txhim kho lub raj xa dej, lawv yuav tsum siv lub raj xa dej vuam tshuab. , vim tias hom khoom no twb yog cov khoom lag luam uas paub tab nyob rau hauv kev ua lag luam, nws muaj kev pheej hmoo rau cov neeg xaiv cov khoom tshiab rau kev teeb tsa, yog li lawv tseem xav tau kev pab ntawm cov khoom qub, rau cov yeeb nkab vuam rau lub tshuab, nws yuav tsum muaj nyob hauv txheej txheem ntawm pipeline installation.
2. Vuam
Tam sim no nrog kev txhim kho txuas ntxiv ntawm cov tshuab quilting, tib neeg muaj kev xav zoo ntawm nws. Nyob rau hauv tus txheej txheem ntawm kev tsim nws, qhov tseem ceeb ntawm vuam yog qhov tseem ceeb, thiab nyob rau hauv tus txheej txheem ntawm kev siv nws, nws yog feem ntau siv tau. Tau lees paub, lub npe hu ua vuam tshuab yog qhov zoo heev, uas yog qhov zoo heev.
