a. Lub xeev ua ntej kev sib tsoo ntawm cov tsheb ciav hlau sab hauv
Ua ntej kev sib tsoo, nto nyob ntawm txoj kab nkhaus hauv qab no thiab sib qab ntawm cov blocks yog 4 thiab 4 hli. Nyob rau tib lub sijhawm, sab saum toj ntawm kev tsheb ciav hlau tau qhia ib tus qauv tiaj thiab concave coj tus qauv, uas undoubtedly cuam tshuam kev siv cov tsheb ciav hlau ib txwm muaj. Txawm li cas los xij, tom qab peb cov kev pabcuam sib tsoo kev sib tsoo, cov teeb meem thaiv no tau raug tswj hwm tau zoo ntawm 30 thiab 40 hli, qhia ib lub xeev tsim nyog dua. Qhov kev hloov pauv no tsis yog txhim kho kev ua tau zoo ntawm kev tsheb nqaj hlau, tab sis kuj tau ua rau lub hauv paus ruaj khov rau nws qhov kev siv ntev ntev. Qhov tseeb, nyob rau hauv tom ntej 10 lub hlis ntawm kev siv, tus nqi qis dua ib txwm tswj hwm lub xeev zoo tau tshwm sim, thiab nws cov ntaub ntawv thiab kev ua tau zoo dua.
b. Lub xeev ntawm kev tsheb ciav hlau qis dua tom qab sib tsoo
Tom qab kev sib tsoo, nto ntawm txoj kev tsheb nqaj hlau ntawm txoj kev nkhaus sab hauv qab ntawm cov khoom lag luam tshiab. Lub block prenomenon tau muaj txiaj ntsig zoo, thiab nws qhov tob yog tswj tsis pub dhau 4 hli, ua kom muaj kev ncaj ncees thiab kev nyab xeeb ntawm txoj kev tsheb nqaj hlau. Nyob rau tib lub sijhawm, lub tiaj thiab concave coj tus qauv sab saum toj tseem tau txhim kho band dav yog cov tswj tau ncaj qha ntawm 30 thiab 40 mm, qhia ib lub xeev tsim nyog. Cov kev hloov pauv no tsuas yog hloov kho cov kev ua tau zoo ntawm kev ua haujlwm, tab sis kuj tseem muab kev lees paub muaj zog rau nws cov khoom siv ntev ntev. Qhov tseeb, nyob rau hauv lub tom ntej 10 lub hlis ntawm kev siv, lub hauv paus qis tau tswj hwm lub xeev zoo, tsis muaj kev thaiv lossis hnav, thiab kev ua haujlwm tau zoo dua.
c. Lub xeev ntawm cov tsheb ciav hlau qis dua ib hlis tom qab sib tsoo
Tom qab ib hlis ntawm kev siv, lub xeev zoo ntawm kev tsheb ciav hlau qis dua tom qab sib tsoo tau txuas ntxiv ua ke. Tsis muaj qhov tshiab thaiv cov kev tshwm sim tau tshwm sim, thiab nws qhov tob tseem nyob hauv 4 hli, qhia txog qhov ua tau zoo ntawm cov nyhuv sib tsoo. Nyob rau tib lub sijhawm, lub tiaj thiab concave hnav cov qauv nyob ruaj khov, thiab tus tiv tauj lub teeb cand dav yog tseem precisely tswj tau ntawm 30 thiab 40 mm, qhia ib qho kev faib tawm tsim nyog. Cov lus no ntawm cov kev ua tau zoo tas li ua rau pom muaj qhov cuam tshuam tseem ceeb ntawm kev sib tsoo kho kev txhim kho cov tsheb nqaj hlau thiab txuas ntxiv lub neej.
d. Cov xwm txheej ntawm kev tsheb ciav hlau qis dua peb lub hlis tom qab sib tsoo
Tom qab peb lub hlis ntawm kev soj ntsuam txuas ntxiv, cov xwm txheej zoo ntawm kev tsheb ciav hlau qis tom qab sib tsoo yog tseem tswj hwm. Tsis muaj kev puas tsuaj tshiab tau tshwm sim, thiab nws cov nplaim hluav taws tseem du tsis muaj qhov tsis ncaj ncees. Nyob rau tib lub sijhawm, hnav morphology ntawm kev tsheb ciav hlau tseem nyob ruaj khov, thiab qhov dav ntawm lub teeb pom kev zoo ntawm 30 txog 40 hli, qhia lub xeev tau xa tawm zoo. Cov series no ntawm kev ua tau ruaj khov ntxiv lees paub qhov tseem ceeb ntawm kev sib tsoo thev naus laus zis hauv kev txhim kho cov tsheb ciav hlau thiab txuas ntxiv nws lub neej pabcuam.
