apochromatic的用法和样例：

词汇搭配

apochromatic lens复消色差镜,复消色差...
apochromatic objective消多色差物镜,复消色...

英语听力：自然百科大迁徙之繁衍生息 Need to Breed—18

Here and now, cub and cub, pound for pound. The bodies of the falling litter the battle field. The females approach to the victorious males willingly, and with a discerning eye. They gravitate to the i/ storm, knowing that only the fittest gladiators

发表于:2018-12-03 / 阅读(78) / 评论(0)

自然百科2011年

美国国家公共电台 NPR Christopher Marley's Dead Things

SCOTT SIMON, HOST: You can forget what you thought you knew about taxidermy. Oregon artist Christopher Marley transforms poisonous snakes, tropical fish and exotic insects into works of art. Now 400 of his creatures are on display in a major exhibiti

发表于:2019-01-16 / 阅读(51) / 评论(0)

2018年NPR美国国家公共电台1月

新西兰英语 628 Stars over Tekapo

Tekapo is a special place. This small town has a big observatory at Mount John, 1000m above the town. It has six telescopes including New Zealands biggest telescope with a diameter of 1.8m, built with Japanese money. The observatory is operated by th

发表于:2019-01-27 / 阅读(48) / 评论(0)

新西兰英语

《俞敏洪GRE红宝书》朗读-a19

chiromancy n．手相术 chirp v．(鸟或虫)唧唧叫 chivalrous adj．武士精神的，侠义的 chivalry n.骑士制度 choleric a．易怒的，暴躁的 chop n．(用斧头等)砍，(风)突然改

发表于:2019-02-01 / 阅读(54) / 评论(0)

GRE英语

VOA标准英语2010-NASA Celebrates 40th Anniversary of Apoll

In April 1970, Apollo 13 was scheduled to land on the moon in NASA's bid to further explore the lunar surface. Instead, an in-flight explosion rocked the spacecraft, preventing astronauts Jim Lovell, Jack Swigert, and Fred Haise from landing on the m

发表于:2019-02-06 / 阅读(48) / 评论(0)

VOA标准英语2010年(四)月

Napoli beat Chelsea 3-1 at home

ROME, Feb. 21 (Xinhua) -- Napoli proved unstoppable at home in the Champions League when they beat Chelsea 3-1 at home in the first leg of the final 16 tie on Tuesday. Chelsea took the lead in the 27th minute through Juan Mata, and then Napoli respon

发表于:2019-02-07 / 阅读(48) / 评论(0)

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abertura

actuarial reserves in respect of life insurance

all round computer center