Tus nqi tswb ntawm lub tswb hluav taws xob hluav taws xob tau teeb tsa raws li hauv qab no: Qhov kev txwv qis qis yog 25 feem pua LEL (kho tau los ntawm 5 feem pua LEL mus rau 40 feem pua LEL); lub neej ntawd siab txwv yog 50 feem pua LEL (kho los ntawm 10 feem pua LEL mus rau 100 feem pua LEL).
Lub hauv paus kev teeb tsa yog raws li hauv qab no: Kev ntsuas ntau ntawm lub tswb hluav taws xob hluav taws xob yog 0-100 feem pua LEL. Raws li lub teb chaws txoj cai, lub tswb qis feem ntau yog teem rau lub tswb ntawm 15 feem pua LEL-25 feem pua LEL.
Thaum lub ntsuas ntsuas muaj ob lub tswb teeb tsa, qhov txwv qis thiab qhov txwv siab, qhov ntsuas qis qis qis yuav tsum muaj nyob hauv thaj tsam ntawm 1 feem pua li-25 feem pua lel, thiab qhov txwv siab tshaj lub tswb ceeb toom tus nqi yuav tsum yog 50 feem pua l; tsuas muaj ib lub tswb Rau qhov teeb tsa tus nqi ntes, lub tswb ntsuas tus nqi yuav tsum nyob hauv thaj tsam ntawm 1 feem pua l-25 feem pua.
Pls Clink Hauv qab Diam duab thiab Nyeem cov ntsiab lus ntxiv txog qhov ntsuas roj hluav taws xob no?
Cov khoom txuas:
