自然地理英语(二).doc

Lesson Thirteen NEW WORDS 1.landsat n.陆地资源卫星 2.photogrammetry n.摄影测量学 3.Ottawa n.渥太华 4.exhibition n.展览,陈列 5.spacecraft n.宇宙飞船 6.satellite n.卫星 7.image vt.使… 成象,反映 n. 图象,影象 8.orbit n.轨道 9.identical a.同一的,相等的,相同的 10.except prep.除…之外 11.sensor n.探测器 12.effective a.有效的 13.interval n.间隔 14.multispectral a.多光谱的 15.scanner n.扫描器 16.subsequent a.其后的,伴随的 17.spectral a.光谱的 18.infrared a.红外线的 19.oscillate vi.振动,摆动,振荡 20.reflector n.反光镜,反射望远镜 21.telescope n.望远镜 22track n.行程,轨迹 23.subtend vt.对 24.swath n.刈幅,幅度,条带 25.nominal a.按计划进行的,名义上的 26.instantaneous a.瞬间的同时发生的 27.detector n.探测器 28.signal n.信号 29.digitize vt.使成为数字, 数字化 30.transmit vt.传递,传达 31.Goddard Space Flight Center 戈达德宇航中心 32.composite vt.合成,组合 33.rendition n.翻译 34.Earth Resources Observation Systems地球资源观察系统 35.Sioux Falls 苏福尔斯(美国南达科他州城市) 36.South Dakota 南达科他(美国北部一州) 37.demonstrate vt.显示,证明 38.contrast n.对比,差异,反差 39.experimentation n.实验,试验 40.documentation n.文件的提供,提供的文件 41.approach n.门径,手段 42.mission n.任务,使命 43.photometric a.测量光度的,光度计的 44.project n.设计 45.cartographic a.制图的 46.utility n.实用,效用 47.survey n.调查 48.sepia n.乌贼墨色,深棕色照片(或印刷品) 49.format n.(出版物的)开本,版式 50.impediment n.阻碍 51.overprint 复印 52.conventional a.常规的,平常的 53.physiographic a.地文的,自然地理的 54.symbol n.记号,符号 PHRASES AND EXPRESSONS At a scale of … 按…比例 (to) serve as … 作用,作为 in some cases 在某些情况下 except for … 除…之外 at intervals of … 每隔 TEXT LANDSAT The opening day of the XII International Congress for Photogrammetry in Ottawa in July 1972,was notable for the exhibition of the Earth acquired by a spacecraft and an imaging system specially designed for that purpose. This was the Earth Resources Technology Satellite-since renamed Landsatd 1.it was followed into orbit in January 1975 by an identical Landsat 2. The characteristics of these satellites are by now well known. The vehicles are in a circular orbit at 915 km altitude and 97°inclination. Each spacecraft makes 14 revolutions per day, and every 18 days the en