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保/护/地/球 人/人/有/责 1.In an effort to cut emissions, the Federal Aviation Administration announced it's changing the way some planes land at U.S. airports. 为了减排，美国联邦航空局宣布他们准备改变美国飞机在机场着陆的方式。  2.Currently, most planes that land at airports descend in a stair-step method, where aircraft repeatedly level off and power up the engines during the descent. 目前，大部分飞机降落机场时都采用的是阶段式下降的方式，这个过程中飞机会不断重复引擎档位调低和调高的操作。 3.Under the agency's new 42 Optimized Profile Descents, or OPDs, planes will instead descend from cruising altitude to the runway in a smoother, continuous path with engines set at near idle. 根据该机构新发布的《优化降落四十二条》，或叫作OPD，飞机将以一个更平滑，连续的路径从巡航高度下降到跑道上，而引擎则设置在接近空档的状态。  46.."If you just think about what takes more energy, walking down the stairs or sliding down a slide, that's basically what the plane is doing," FAA spokesperson Matthew Lehner said in an interview with ABC News. 联邦航空局发言人马修·莱纳在接受美国广播公司新闻部采访时表示：“如果你要考虑哪种方式更消耗能量，走下楼梯还是滑下滑梯呢，这基本上就是飞机降落时要做的事情。” 5.The move is part of the agency's work to achieve a net-zero greenhouse gas emissions aviation sector by 2050 -- part of Transportation Secretary Pete Buttigieg's U.S. Aviation Climate Action Plan announced at the United Nations Climate Change Conference last November. 这一举措是该局在2050年前实现航空业零温室气体排放的工作的一部分---这也是交通部长皮特·布蒂吉格去年11月在联合国气候变化会议上宣布的“美国航空气候行动计划”的一部分。 6."There's less fuel burn as you're sliding down toward the approach to the airport," Lehner said. “飞机以滑行下降的方式着陆机场的时候能耗更少，”莱纳说道。 7."It also means with less fuel burning you get less emissions in the air." “而能耗更少也会意味着飞机排放的温室气体也更少。”  8.In 2013, researchers with the FAA and the Georgia Institute of Technology found OPDs cut about 41 million pounds of carbon dioxide emissions and 2 million gallons of jet fuel at Los Angeles International Airport in one year, which is equivalent to cutting 1,300 flights from Atlanta to Dallas, the FAA said. 美国联邦航空局和佐治亚理工学院的研究人员在2013年发现，OPDs一年内在洛杉矶国际机场减少了约4100万磅的二氧化碳排放和200万加仑的航空燃料，相当于减少了从亚特兰大到达拉斯的1300次航班。 9.The FAA implemented OPDs at various airports across the country in 2021, including Dallas-Fort Worth International Airport, Miami International Airport and Florida's Orlando International Airport. 后来，联邦航空局于2021年开始在全国多个机场实施了OPD，包括达拉斯-沃斯堡国际机场、迈阿密国际机场和佛罗里达州奥兰多国际机场。 10.This year, it plans to implement the descents at New York's LaGuardia Airport, Missouri's Kansas City International Airport and Omaha, Nebraska's Eppley Airfield. 今年，该局计划在纽约拉瓜迪亚机场、密苏里州堪萨斯城国际机场和内布拉斯加州爱普利机场奥马哈也推广实施OPD。 11.It is also adding additional routes at Orlando International Airport. 该局害打算在奥兰多国际机场增加一些航线。 12.In addition to cutting emissions, the agency said passengers might notice a smoother, quieter approach with the engine not revving throughout its descent. 除了能减排之外，该局称乘客害可能会注意到下降的过程会更加平稳，安静，因为降落过程中引擎不需要再次启动了。  13.The continuous landing technique is also quieter for areas surrounding airports. 这种平滑降落的技术害使得机场周边区域会更安静。 |
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