Called V-2 rockets, the German weapons carried a ton of explosives three hundred twenty kilometers.

VOA: special.2009.06.10

To safely capture up-close film footage of tornadoes, some project participants traveled in a seven-ton, armored tornado intercept vehicle directly into tornadoes as they formed.

VOA: special.2011.04.19

The 30-ton vehicle is nimble enough for rough terrain and sufficiently armored to deflect all but the biggest bombs.

VOA: standard.2010.08.01

That cabin is a 14-ton spherical steel capsule only two meters in diameter, with a single,half-meter-wide circular plastic window for viewing.

VOA: standard.2010.06.21

This month,export prices for Southeast Asian rice have jumped from about $550 a ton or less to more than $650.

VOA: standard.2009.12.17

Prices on the global market could again near the record above $1,000 a ton set in the middle of 2008.

VOA: standard.2009.12.17

It started out as a nine ton block of ice.

VOA: standard.2009.12.13

most sweeping emissions trading system companies would have to buy permits for every ton of carbon they emit, a system designed to provide financial incentives for those that reduce their pollution.

VOA: standard.2009.05.03

Officials from Vietnam, a leading export competitor with Thailand, predict prices will reach about This week the Philippines' National Food Authority offered almost $665 a ton for 600,000 tons of Vietnamese rice.

VOA: standard.2009.12.17

"Just a back-of-the-envelope calculation shows that in the Philippines, if we in a year can be reaching just five thousand farmers and their fields can be increasing the yield by half a ton per hectare, we could be looking at profitabilities for those farmers in the range of half a million dollars."

VOA: standard.2010.07.28