望远镜

alkali hydroxides

碱性的氢氧化物

alignment telescope 校准用准直望远镜 | alkali hydroxides 碱性的氢氧化物 | alkali metal cable 碱金属电缆

Magnifiers, eyepieces and objectives (trade)

放大镜,目镜和物镜(贸易)

6510005 Optical glasses and lenses (trade) 光学玻璃... | 6510009 Magnifiers, eyepieces and objectives (trade) 放大镜,目镜和物镜(贸易) | 6510010 Binoculars, telescopes and periscopes (trade) 单双筒望远镜...

microprism

微棱镜

通常配备的裂像(Split-image)或微稜镜(Microprism)对焦屏,对大焦比( f/ )的望远镜毫无作用,至於周围的磨砂玻璃则略嫌粗糙. 最好是更换特别适合天文摄影的对焦屏,如:一般上振动多由於反光镜(Reflex mirror)如反光镜配有销起装置(Mirrorlock)用的摄影机,

hot R Coronae Borealis star

高温北冕 R 型星

host galaxy 寄主星系 | hot R Coronae Borealis star 高温北冕 R 型星 | HST, Hubble Space Telescope 哈勃空间望远镜

varifocal lens

可变焦距镜头

varifocal erecting system ==> 变焦正像系统 | varifocal lens ==> 可变焦距镜头 | varifocal lens binocular ==> 变焦透镜双筒望远镜

X-ray transmission photograph X

射线透射照相

X-ray telespcope X射线望远镜 | X-ray transmission photograph X射线透射照相 | X-ray-induced fluorescence X射线感应发光,X射线感应荧光

X-ray transmission photograph X

射线透

X-ray spectrometer X射线分光计 | X-ray telespcope X射线望远镜 | X-ray transmission photograph X射线透

X-ray spectrograph

射线摄谱仪

X射线屏蔽玻璃 X-ray shielding glass | X射线摄谱仪 X-ray spectrograph | X射线摄谱望远镜 X-ray spectrographic telescope

X-ray spectrometer

射线分光计

X射线摄谱望远镜 X-ray spectrographic telescope | X射线分光计 X-ray spectrometer | X射线立体电视 X-ray stereo television

X-ray spectrometer

射线谱仪

X射线摄谱仪 X-ray spectrograph | X射线谱仪 X-ray spectrometer | X射线望远镜 X-ray telescope

McKenna：麦肯纳(姓氏)

officers n.政府官员, 军官, 警官, 船长vt.指挥 | mckenna 麦肯纳(姓氏) | disappointing adj.使人失望的, 令人失望的

rapid：激流

他们穿过很多美丽的峡谷,绕过无数大瀑布(cataract)、激流(rapid)和瀑布(waterfall). 带着仅有的两艘船,和几乎完全耗尽的给养,剩余的六个人终于到达了维尔京河(Virgin)的摩门教定居点. 这里,是他们一百天探险的终点.