Peb chav tsev ua yeeb yaj kiab thiab vis dis aus tsuas tso saib tau los yog rub tawm los ntawm cov tswv cuab nkaus xwb
Txuas ntxiv saib xyuas dawb ➞Nws yuav siv sij hawm tsawg dua li 1 feeb Mus Sau Npe Sau Npe ces koj tuaj yeem txaus siab rau Cov Yeeb Yaj Kiab Unlimited & Cov npe TV.
The Construction of the Hoover Dam 2010 Pub dawb Kev Nkag Mus Siv
Shows the building of Hoover Dam itself, including how rock quarries, concrete factories, and even steel mills were built on location to supply the needs of the dam builders. "Against all odds: In 1931, engineers faced almost insurmountable problems. Massive amounts of material and manpower were needed. Rock quarries, concrete factories and even steel mills has to be built on location! The new bridge, the dam today & more: Filmed in High definition, DVD bonus features include views from the spectacular new bridge, a raft trip down Black Canyon, historic footage of the 1983 flood when Lake Mead overflowed, a photo gallery and more.
Sijhawm Sawv: 35 feeb
Zoo: HD
Tso Tawm: Jan 01, 2010
Ncig Teb Chaws:
Lus:
