Qhov zoo ntawm Tag Nrho Hauv Ib Hnub Ci Txoj Kev Teeb
Integrated solar street lights yog ib yam ntawm txoj kev teeb pom kev zoo uas siv lub hnub ci zog los tsim hluav taws xob. Los ntawm kev sib xyaw cov khoom xws li hnub ci vaj huam sib luag, cov tswj hwm, teeb pom kev zoo, thiab cov roj teeb rau hauv ib chav tsev, lawv yooj yim heev ...
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