Chav ntim khoom ua ntu

: 1, rau lub tshuab hnab yuav raug ntim hnab xa mus rau txhua qhov chaw, 2, tsis siv neeg sau tshuab ntawm kev ntsuas: tshwj xeeb ntim ntim faib

cia li mus rau hauv lub hnab thiab

3, lub hnab xa tawm tshuab: cov khoom tiav lawm rau tus neeg nqa khoom lossis ib nrab

cov khoom tiav lawm rau hauv seem

4, lub tshuab pub mis tsis siv neeg: yuav nyob twj ywm cov pob khoom xa mus rau qhov them nqi metering

tshuab sau ua ib pawg tiav ntawm cov khoom siv

5, cov khoom siv rov ua dua tshiab ntawm cov khoom qab zib: rau txhua lub hnab ntim khoom txij li thaum

dynamic quantitative ntxiv kua zaub lossis roj

2, cov lus piav qhia luv luv txog kev siv tshuab

1, rau lub tshuab hnab

1. 1, rau-chaw nres tsheb teeb tsa, nws qhov chaw nyob yog raws li ntawm lub hnab, qhib lub hnab, sau ib qho, sau, cua sov sealing, tawm ntawm lub hnab