A hybrid electronic control unit was invented to manage the spark, fuel injection, hydrogen volume fraction of the total intake and overall excess air ... T Su,C Ji,S Wang,... - 《International Journal of Hydrogen Energy》 被引量: 1发表: 2017年 加载更多研究...
When was the solar panel invented? What is the photovoltaic effect? Why are solar panels used in outer space? Editorial Contributors George Duval George Duval is a writer and expert in sustainability and environmental studies. After graduating with a B.A. in Sustainability from Florida International...
What fuel do barges use? In the early 20th century, barges were equipped with very slow revving single or two-cylinder engines with hand or air starting. Nowadays, these engines have beein replaced with robust and reliabledieselengines, with efficient conventional or electronic injection that provi...
To extinguish (熄灭) different kinds of fires, several types of fire extinguishers have been invented. They must be ready for immediate use when fire breaks out. Most portable (手提式的) kinds operate for less than a minute, so they are useful only on small fires. The law requires ships,...
a German, invented the first motorcar. Today, the use of motorcar has become an important form of transport. There are currently about 200 million cars on the roads all over the world. Some are designed for speed and others are produced with special technology (1)___ ...
importantuseisintransportation.Aluminumisfoundintheengineofautomobiles,inthehullsofboats.Itisalsousedinmanypartsofairplanes.Infact,thehuge“airbus”planeswouldprobablyneverhavebeenproducedifaluminumdidnotexist.Bymakingvehicleslighterinweightaluminumhasgreatlyreducedtheamountoffuelneededtomovethem,Aluminumisalsobeingused...
The firm was one of the first to institute job enrichment programs; way before the term was even invented. Everything it did was aimed at making employees feel important. And for years IBM had a highly motivated work force. But things have changed. IBM chairman John Akers told a startled ...
9) Yes. Oil can still be used for things other than fuelling transport. Whatever the knit your own yoghurt pot types think, we’re not ready for Green nirvana yet. None of this is rocket science. It’s no different now than it was in 2014. The difference now post brexit is that th...
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which allowed the lucky survivors to gobble up the resources liberated by mass graves. After we’ve burned all the fossil fuels, these scholars suggest, perhaps we will return to a “steady state” global economy. Of course, that onetime injection has a devastating long-term cost: climate cha...