单词：achromatic doublet lens
单词：achromatic doublet lens 相关文章
Ah, Ophelia, don't you look authentic? Thank you, Mr. Feeny. Here's your costume. Ah. Dad and I sewed it last night. Wait a minute. What was your dad thinking? This is a mini dress and pantyhose . No, no. Actually, this is a doublet and tights which
听美剧学英语-《淘小子看世界》
Our story today is called The Diamond Lens. It was written by Fitz-James O'Brien. We will tell the story in two parts. Now, here is Maurice Joyce with part one of The Diamond Lens. When I was ten years old, one of my older cousins gave me a microscop
2018年VOA慢速英语(二)月
AMERICAN STORIES - Short Story: The Diamond Lens by Fitz-James O'Brien (Part 2) Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story is called The Diamond Lens. It was written by Fitz-James O'Brien. Today we will hear the second and
2011年VOA慢速英语(六)月
Our story is called The Diamond Lens. It was written by Fitz-James O'Brien. Today we will hear the second and final part of the story. Here is Maurice Joyce with part two of The Diamond Lens. When I was a child, someone gave me a microscope. I spent
2018年VOA慢速英语(三)月
中文 英文 缩写 暗斑/暗点 dark spot 暗边 dark side 暗淡面 dark tint face 暗导电率 dark conductivity 暗电流 dark current 暗电阻 dark resistance 暗电阻率 dark resistivity 暗光
电信英语
AMERICAN STORIES - Short Story: The Diamond Lens, Part 1, by Fitz-James O'Brien SHIRLEY GRIFFITH: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story today is called The Diamond Lens. It was written by Fitz-James O'Brien. We will te
2011年VOA慢速英语(六)月