Peb Pab Pawg

Peb lub tuam txhab tau tsim ib qho kev pabcuam thiab kev muag khoom ntawm ntau tshaj 20 tus neeg, koom nrog kev tshawb fawb thiab kev tsim kho thiab tsim cov khoom siv hluav taws xob sib xyaw ua ke rau cov tshuab hluav taws xob diesel thiab cov khoom muaj feem xyuam,tomuab cov kev daws teeb meem zoo tshaj plaws rau kev txuag hluav taws xob thiab txo qis emission rau cov neeg siv khoom lub tsheb.