发现可以给手机充电的细菌
时间：2018-12-18 作者：英语课 分类：有声杂志阅读
Bacteria Discovered To Recharge Cell Phone
A microbe called Rhodoferax Ferrireducens，found in the mud at Oyster 1 Bay，Virginia，has been discovered to transfer electrons directly onto an electrode as it metabolizes sugar into electricity．"You can harvest enough electricity to power a cell phone battery for about four days from a sugar cube，"researcher Derek Lovley says．"A cup of sugar contains enough power to light a 60－watt light bulb for about 17 hours．"This process is accomplished 2 at an astonishing 80% efficiency and produces only carbon dioxide gas as a byproduct．Previous similar reactions progressed at only 1% efficiency and required toxic 3 metallic 4 mediator 5 chemicals to assist，avoided here because the bacteria grows happily as a slime colony directly on the electrode plates．The bioreaction was found to work not only with glucosebut also with the fruit sugar fructose，with sucrose（found in sugar cane 6 and sugar beet）and even xylose，a sugary byproduct of wood and straw．In addition，the bacterium 7 is rugged 8 and stable，able to grow at temperatures ranging from four to 30℃，with 25℃the optimum．If engineering obstacles can beovercome and manufacturing techniques devised，a power cell based on this process could one day be as compact as household batteries．
- I enjoy eating oyster; it's really delicious.我喜欢吃牡蛎，它味道真美。
- I find I fairly like eating when he finally persuades me to taste the oyster.当他最后说服我尝尝牡蛎时，我发现我相当喜欢吃。
- Thanks to your help,we accomplished the task ahead of schedule.亏得你们帮忙,我们才提前完成了任务。
- Removal of excess heat is accomplished by means of a radiator.通过散热器完成多余热量的排出。
- The factory had accidentally released a quantity of toxic waste into the sea.这家工厂意外泄漏大量有毒废物到海中。
- There is a risk that toxic chemicals might be blasted into the atmosphere.爆炸后有毒化学物质可能会进入大气层。
- A sharp metallic note coming from the outside frightened me.外面传来尖锐铿锵的声音吓了我一跳。
- He picked up a metallic ring last night.昨夜他捡了一个金属戒指。
- He always takes the role of a mediator in any dispute.他总是在争论中充当调停人的角色。
- He will appear in the role of mediator.他将出演调停者。
- This sugar cane is quite a sweet and juicy.这甘蔗既甜又多汁。
- English schoolmasters used to cane the boys as a punishment.英国小学老师过去常用教鞭打男学生作为惩罚。