Tshawb nrhiav 314 km² hauv 10 teev - qhov kawg kev sib ntaus sib tua ntawm kev tshawb nrhiav engineers tawm tsam hav zoov
Xav txog qhov teeb meem: ob tug neeg ploj hauv hav zoov. Ib tug ntawm lawv tseem yog mobile, lwm qhov yog nyob rau hauv qhov chaw thiab txav tsis tau. Lub ntsiab lus uas lawv tau pom zaum kawg yog paub. Lub voj voog tshawb nrhiav nyob ib ncig ntawm nws yog 10 km. Qhov no ua rau thaj tsam ntawm 314 km2. Koj muaj kaum teev los tshawb nrhiav siv thev naus laus zis tshiab. Tau hnov cov xwm txheej rau thawj […]