单词：exit pupil diameter
单词：exit pupil diameter 相关文章
The Moon We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation shows that the moon is not standing till. Its distance fr
双语有声阅读
[00:22.60]Listen,look and repeat(I) [00:29.57]P Pp Q Qq R Rr S Ss [00:55.90]Listen,look and repeat(II) [01:11.34]P Pp a pen A PEN [01:24.90]Q Qq a quilt A QUILT [01:38.85]R Rr a ruler A RULER [01:53.21]S Ss a school A SCHOOL [02:06.56]Listen,look and
小学英语陕旅版三年级
Lesson Two (man)Are you from America?Lesson Two (woman)Are you from America? Lets talk A: Tom, this is Chen. Tom: Hello, Chen. Chen: Hello, Tom. Tom: Are you from America? Chen: No, I'm from England. What about you? Tom: I'm from America. C: I'm from
小学英语四年级 (下)
Quarter 25分硬币 A quarter is an American or Canadian coin. quarter是指美国或加拿大的一种硬币。 How much is a quarter? 这种硬币值多少钱呢？ A quarter is equal to 25 cents. 它等价于25分。 It is worth one fourth of a do
与美国小学生一起学英文第5册
围绕树木展开的话题.... Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today, for the second part of our tree climbing programme, Im joined by Kate. OK Kate, well last week we were talking about tree climbing,
一起听英语
Hi, I'm Carl Azuz. Welcome to this Columbus Day edition of CNN Student News! We'll be talking more about Columbus Day in just a couple minutes. But first, we're reporting on a breakthrough in Chile. And we mean that literally. A hole big enough to re
CNN2010年(十)月
At the prodding of my friends, I am writing this story. My name is Mildred Hondorf. I am a former elementary school music teacher from DeMoines, Iowa. I've always supplemented my income by teaching piano lessons--something I've done for over 30 years
英语美文
[00:00.00]Unit 2 [00:19.59]Why are we waiting? [00:25.65]Activity 1 [00:33.10]Listen and repeat. [00:36.94]time [00:39.65]fast [00:42.48]winter [00:45.22]flute [00:48.09]blue [00:51.83]June [00:54.57]Tuesday [00:57.60]use [01:00.47]pupil [01:03.22]bu
新标准小学英语活动用书6册(一年级起点)
UNIT 17 Where Is the School Canteen?\n [au:]第十七单元 学校饭堂在哪里？\n [00:06.10]Dialogue\n [au:]对话\n [00:07.91]2 Listen and read the dialogues.\n [au:]2 听一听，读一读。\n [00:12.22]Jiamin: Excuse me. Im going to meet a f
广州版金太阳小学英语五年级上
[00:37.80]Listen and read [00:41.85]This is our playground.Today is our sports day.Look!The games have begun. [00:52.58]Pupil A:Look!The relay race has begun.Guess,which class will win? [01:00.92]Pupil B:Class 1,I think. [01:04.68]Pupil C:I don't thi
小学英语陕旅版五年级
Diameter 直径 A diameter is a straight line inside a circle. 直径是圆内的直线。 Can any straight line in a circle be a diameter? 圆内的任何直线都是直径吗？ No, its two ends must meet at two different points on the circle. 不是
与美国小学生一起学英文第9册
Sand 沙子 If you look around you, you can find sand very easily. 你若环顾四周，就很容易发现沙子。 Sand comes from rocks. 沙子源自岩石。 Each grain of sand is less than 2 millimeters in diameter. 每粒沙子的直径小于两毫
与美国小学生一起学英文第5册
In the storeroom 在库房 A:Where can I find a spare hose for the pump? A:我在哪里可以找到一跟备用的机泵软管？ B:What size do you need? B:你需要什么型号的？ A: 25 mm diameter. A:直径25毫米的。 B:They're at the back o
职业技术英语口语
Xue Tan took singing lessons from Qin Qing，a famous singer inthe state of Qin．Before learning all that Qing had to teach him，Xue claimed that he had mastered all of Qing's skills and asked to leave．Qing did not try to stop him but gave a fare
趣味英语
A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A: Oh, yes. I like that one. But it's too heavy. B: Okay, try this one. It's made of aluminum. A: O
购物英语对话
A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A:I like that one, but it's too heavy. B: Okay, try this one. It's made of aluminum. A: This is muc
购物-Shopping
Tree climbing: Part 2 NB: This is not an accurate word-for-word transcript Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today, for the second part of our tree climbing programme（节目,计划）, Im joined by Kate.
六分钟英语
A teacher asked one of her pupils, What'sthe nation's capital?The reply was, Washington DCOn being asked what the DC stood for,the pupil added, Dot com!
趣味英语
Bad weather meant that oil could not be pumped out of the ship the Rena today. The waves were too high. Pumping the oil is slow work because the oil is cold and thick. The pipe from the Rena to the oil barge is nearly 200m long and quite narrow, 7.5c
新西兰英语