从理论上讲，氢燃料电池驱动的汽车是无污染的，但由于氢难以廉价、大量地生产，这种汽车在普及方面打了折扣。
Vehicles powered by hydrogen fuel cells are, in theory, pollution-free but their popularity has been compromised by the difficulty of generating hydrogen cheaply and plentifully.
该批无污染车辆由欧盟赞助，通过绿色燃料发动，利用低成本科技，装载12个精密传感器，实现了在各种不同类型的交通、天气和路况下的安全行驶。
The nonpolluting vehicles, powered by green energy, are equipped with low-cost technologies and 12 sensors to drive safely in different types of traffic, weather and road conditions.
燃料电池的具有比能量高，比功率高，对环境无污染等突出优点，越来越为人们所重视。
Fuel cells attract human's more and more interesting by the virtue of high energy density, high power density and no pollution.
质子膜燃料电池(PEMFC)以其高功率密度，启动迅速，无污染等优点成为21世纪首选清洁能源系统。
Proton membrane fuel cell (PEMFC) with its advantages such as high power density, rapid start and pollution-free becomes the first-selected clean energy system in 21st century.
取材于氢气的燃料电池燃烧时无污染，并已成为一项重要研究的攻克对象。
Fuel cells based on hydrogen burn cleanly, and are the subject of a serious research effort.
燃料电池长期预示着无污染驾驶，但是当它被应用到一辆普通车上时，因其巨额的成本，举步维艰。
Fuel cells have long promised pollution-free driving , but have been held back by their enormous cost when applied to a normal car .
燃烧充分，节省燃料，无污染。
同样的，航空燃料也不能用无污染的替代品来替换。
大力开发生物质的热裂解制油技术，可将低品位的生物质能转化成高品质的、高能量密度，清洁、无污染而且二氧化碳排放为零的生物油液体燃料。
The technology of biomass pyrolysis can convert low-quality biomass into bio-oil that has the character of high-quality, high energy density, cleanness and zero carbon dioxide emission.
燃料电池技术曾经只被用来为航天器提供动力，但现在被拿到地球上，给人们带来了无污染交通运输的前景。
Fuel - cell technology was once used exclusively to power spacecraft, but it is now being brought down to earth, offering the prospect of pollution - free transportation.
它燃烧时，无烟、无味、无有害气体产生，不怕震动及倒落，火焰近于蓝色，是一种使用方便易携带，卫生无污染、安全无意外的理想炊用燃料。
During burning, it has no smoke, smell and harmful gas generated, it is not affected by vibration and turning upside down, and has a flame approaching blue colour.
它燃烧时，无烟、无味、无有害气体产生，不怕震动及倒落，火焰近于蓝色，是一种使用方便易携带，卫生无污染、安全无意外的理想炊用燃料。
During burning, it has no smoke, smell and harmful gas generated, it is not affected by vibration and turning upside down, and has a flame approaching blue colour.
应用推荐