One 3-D technology uses low-cost polarized glasses.

VOA: special.2010.01.26

How much does it cost both to create the technology and to use it?

创造新技术和使用它,分别需要花多少钱？

麻省理工公开课 - 媒体、教育、市场课程节选

"Promoting our common goals around education,health care, energy,public safety, and,I think in each of those areas, you actually see on the floor here new innovative ideas to take advantage of this general purposes technology that broadband is, and apply it to provide better services at lower cost in each of these areas."

VOA: special.2010.01.26

This is the story of how one man combined LEDs with solar energy technology to bring high-quality, low-cost electric light to poor people around the world.

VOA: standard.2009.12.13

But technology expert Rob Atkinson says smartphones will most likely not be widely used in many developing nations because of their cost, and the cost of connected on-line data plans.

VOA: standard.2010.06.25

But the critics and supporters agree one of the British national health service's biggest challenges, as it enters its seventh decade, are the mounting cost of new technology and medicines, and an aging population.

VOA: standard.2009.09.24

"The best way to responsibly advance our security and the security of our allies is to deploy a missile defense system that best responds to the threats that we face and that utilizes technology that is both proven and cost effective."

VOA: standard.2009.09.17

"And so he then went back and worked on technology adaptation and designed very low-cost, small affordable solar panels with fitted bulbs, maybe one or two bulbs per household, made sure that the bulbs could be moved from room to room, depending where people wanted the light,".

VOA: standard.2009.12.18