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1、
In astronomical situations, the natural line width is seldom directly observed.
在天文学研究中, 谱线固有宽度很少能直接观测到.
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- 相关词组
- be hit by a natural adversity受灾
- natural and man-made calamities天灾人祸
- not natural不自然
- an inadequate natural endowment先天不足
- bear one's husband children and so continue the family line传宗接代
- is a fusion of feelings with the natural setting情景交融
- help the people tide over a natural disaster救灾
- in every conceivable line of work三十六行；七十二行
- a weak natural physical endowment先天不足
- natural calamities and man-made misfortunes天灾人祸
- bee line最短距离，最短航程；最短路径；空中距离；直线，直路；蜜蜂飞行线
- come down in one continuous line一脉相承
- production line balancing生产线平衡
- natural disaster and human foe天灾人祸
- climate and other natural phenomena of a season节令
- make up for lack of natural talent by hard work勤能补拙；以勤补拙
- never to blot a line in writing -- have a facile pen文不加点
- propaganda directed to the enemy at the front line喊话
- natural and man-made disaster自然灾害和人为灾害；天灾人祸
- jade and gold in natural state浑金璞玉
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- mandatory adj.强制的;强制性的;法定的;义务的;命令的;受委托的;n.受托者
- headteacher n.中小学的校长;
- workday n.工作日;平日（指非假日）;（一个）工作日;一天的工作时间;
- china joy 国际数码互动娱乐产博览会；中国国际数码互动娱乐展览会
- junior adj.职位较低的;青少年的;三年级的;n.职位较低者;青少年;小学生;较年幼者;（高中或大学的）三年级学生;
- put down 放下；奚落的语言；贬低的行为
- P.E. n.体育课;
- passport n.护照;途径，手段;
- apron n.围裙;[航] 停机坪;[机]（防护）挡板;舞台口;vt.用围裙围住;围绕;
- learned adj.有学问的;博学的;学术性的;后天习得的;知识渊博的；学问精深的；通过训练(或经历)形成的；非天生的v.学习；学；学会；学到；得知；获悉；记住；听到；熟记；背熟
- annual adj.每年的;一年的;[植物]一年生的;n.年刊;一年生植物;
- alley n.胡同，小巷;小径;球道;
