[化] 螺旋结构

helical structure的用法和样例:

例句

  1. Double helical structure of DNA and types of DNA helices.去氧核糖核酸的双螺旋结构与其类别。
  2. The CD spectra showed that the addition of glycerol to the collagen did not damage the native triple helical structure of collagen.圆二色谱表明,甘油的加入没有改变胶原天然的三股螺旋结构。

[00:00.00]Vienna n. [00:00.69]维也纳 [00:01.38]expect vt. [00:02.17]盼望 [00:02.95]stage n. vt. [00:03.41]阶段 上演 [00:03.87]scheduled a. [00:04.45]预定的 [00:05.04]contract vt. n. [00:05.83]承包 合同 [00:06.61]foundation n. [00:07.3

发表于:2018-12-05 / 阅读(292) / 评论(0) 分类 工商管理英语

UNIT ELEVEN [00:11.28]She goes to work by bus.Tony is writing a letter to his pen-friend. [00:22.75]He is answering his pen-friend's questions. [00:29.52]2 Octber 1995 Dear David, [00:39.44]Thank you for you letter.Here are the answers to your questi

发表于:2018-12-13 / 阅读(317) / 评论(0) 分类 小学综合英语3A

UNIT FOUR [00:03.21]Can I have a bowl of soup?Picture 1. [00:12.41]Peter,Tony and Jenny are playing waiters.Peter is the waiter. [00:23.93]Tony and Jenny are ordering their food.Picture 2. [00:35.71]Can I have a bowl of soup,please?No,I'm sorry. [00:

发表于:2018-12-13 / 阅读(320) / 评论(0) 分类 小学综合英语3A

UNIT SIX [00:12.49]Birthday presents Picture 1. [00:19.36]What do you want for your birthday,Mum? Oh,I don't know,dear.Picture 2. [00:34.77]Do you want any cakes? No,thank you,dear.Picture 3. [00:49.14]Do you want any flowers? No,thank you,dear.Pictu

发表于:2018-12-13 / 阅读(394) / 评论(0) 分类 小学综合英语3A

UNIT SEVEN [00:14.79]Which one do you want?Picture 1. [00:22.94]Can I have an apples? I like apples. Yes,of course.Picture 2. [00:38.77]Which apple do you want?The big one,please. [00:46.52]I don't want the small one. Gogo!You're greedy!Picture 3. [0

发表于:2018-12-13 / 阅读(349) / 评论(0) 分类 小学综合英语3A

UNTI TWELVE [00:04.28]What am I?Picture 1. [00:11.86]Tony and Lily are playing'What am I?'Are you young or old? [00:24.92]I'm young.Picture 2. [00:33.46]Have you got hair or feathers? I've got feathers.Picture 3. [00:46.99]Can you run or fly? I can r

发表于:2018-12-13 / 阅读(347) / 评论(0) 分类 小学综合英语3A

UNIT NINE [00:07.78]Lily and Susie go to school every day.Picture 1. [00:19.64]Lily and Susie go to school every day.They are in the same class. [00:31.43]They sit together every day.Picture 2. [00:41.87]It is eight fifteen.Lily and Susie are having

发表于:2018-12-13 / 阅读(343) / 评论(0) 分类 小学综合英语3A

UNIT EIGHT [00:11.78]Keep off the grass.Picture 1. [00:18.94]Jenny is visiting Peter's school.It is his school's Open Day.Picture 2. [00:32.00]Can we go into this room,Peter?No,we can't. look at the notice. [00:43.55]It says,'keep out.'Picture 3. [00

发表于:2018-12-13 / 阅读(322) / 评论(0) 分类 小学综合英语3A

UNIT TWO [00:12.20]Gogo can fly.Picture 1. [00:20.24]What can Gogo do,Tony? I don't know.Picture 2. [00:32.63]What can you do,Gogo? I can dance.Picture 3. [00:45.56]That's very good,Gogo. Can he sing?Picture 4. [00:57.94]Can you sing,Gogo? Yes,I can.

发表于:2018-12-13 / 阅读(377) / 评论(0) 分类 小学综合英语3A

Unit 5 [00:38.30]Patsy's birthday party [00:42.14]Last Sunday Patsy Wu had a birthday party. [00:48.01]She invited her friends. When they arrived she said, [00:54.57]'What games do you want to play?' [00:59.01]'Let's play Twenty Questions,'Peter said

发表于:2018-12-13 / 阅读(356) / 评论(0) 分类 小学综合英语6A

Unit 1 [00:27.95]The donkey and the pekinese [00:32.71]There was a merchant who had a Pekinese dog. [00:37.98]It was like a toy. [00:41.14]The Dekinese lived in the merchant's house, [00:45.90]slept on his bed, sat on his lap and lived an easy life.

发表于:2018-12-13 / 阅读(382) / 评论(0) 分类 小学综合英语6A

Unit 13 [00:39.58]The farmer and the fox [00:43.52]There was a rich farmer who owned many fields. [00:49.08]He also kept ducks and hens. [00:53.76]They gave him eggs and sometimes he ate one for his dinner. [01:00.60]One night in winter a fox came to

发表于:2018-12-13 / 阅读(331) / 评论(0) 分类 小学综合英语6A

UNIT TEN [00:18.49]Ten apples.Picture 1. [00:25.76]A B C STORE.Picture 2. [00:34.53]One carrot.Picture 3. [00:42.55]Two lemonsPicture 4. [00:52.19]Three bananas. Picture 5. [01:00.73]Four sweets.Picture 6. [01:11.97]Five eggs.Picture 7. [01:22.13]Six

发表于:2018-12-13 / 阅读(344) / 评论(0) 分类 小学综合英语1A

Unit 2 [00:48.20]Is there anyone outside? [00:52.45]1 The Busy Bee Club met in John Tam's flat yesterday. [01:01.05]The children watched television.John heard a noise. [01:08.70]-What was that? [01:12.75]-I can't hear anything [01:16.12]2 -There's so

发表于:2018-12-13 / 阅读(303) / 评论(0) 分类 小学综合英语4A

Unit 6 [00:55.09]At the sale [00:58.25]Every year the Busy Bees collect money for the school. [01:05.59]They have a stall in the school playground. [01:11.16]They collect things from their friends. [01:15.60]Then they sell them. [01:19.44]1 -I'm look

发表于:2018-12-13 / 阅读(288) / 评论(0) 分类 小学综合英语4A

Unit 11 [00:43.70]The school bag [00:47.18]Last monday,Peter,Patsy John and Annie were at the bus stop. [00:55.93]A bus arrived. One of the boys picked up Annie's school bag. [01:07.76]'Hey!Annie said.'That bag is mine.' [01:14.14]'No,it isn't,'the b

发表于:2018-12-13 / 阅读(364) / 评论(0) 分类 小学综合英语4A

Unit 5 [00:49.32]Treasure hunt [00:53.47]Last Sunday,Jane took the children on a picnic. [01:00.24]-Shall we have a trea-sure hunt? [01:03.79]-Oh,yes! Jane hid some coins and drew a map. [01:10.95]She gave the children the map and a set of clues. [01

发表于:2018-12-13 / 阅读(307) / 评论(0) 分类 小学综合英语4A

Unit 9 [00:54.62]Sharing [00:57.86]The children played at Peter's flat last Sunday. [01:04.42]At 4 o'clock they were hungry.They wanted some food. [01:11.78]'We can put all our money together and then share it,'Annie said. [01:19.65]'No,we can spend

发表于:2018-12-13 / 阅读(323) / 评论(0) 分类 小学综合英语4A

Unit 13 [00:46.21]A holiday [00:49.16]'Tomorrow is a holiday John said to the Busy Bees. [00:55.82]'What are we going to do? [00:59.17]'I'm going to get up late,'Annie said.'I'm going to stay in bed all morning.' [01:07.03]'I'm not going to spend my

发表于:2018-12-13 / 阅读(292) / 评论(0) 分类 小学综合英语4A

Uint 2 [00:46.18]The lost pures [00:49.53]One afternoon Jane took the children out. [00:55.09]They went to the cinema and a supermarket. Then Jane said, [01:02.75]'It's time to go home.'She took the children to the MTR station. [01:10.61]She felt in

发表于:2018-12-13 / 阅读(482) / 评论(0) 分类 新路径小学英语六年级下册(一起)
学英语单词
abhorment
acetaminophenol
area boundaries
assimilation box
at the library
banks oil
base year analysis
be delighted with
bearing down upon
biophysiographic
cargo barge
caucasus mountainss
chrominance-subcarrier reference
coefficient of transformationn
compressed air breathing apparatus
Convexina
dark-trace tube
decoding memory drive
demantoite
depreciation recapture
Deutzia breviloba
digital differential circuit
discrete subfield
enthalpy rise hot channel factor
every hand
failure-to-pay
flanging hydraulic priss
Franklin equation
gazellelike
geiger-nuttal law
generic UNBIND
geremia
glennons
gradys
gravylike
Guir, C.
horizontalized
hydrocyanite
image mutual coherence function
kimbel
knauffite
koharski
l'universite
leiris
lesbie
liquid tritium
logical compare
lustfull
manual record
memory relocation
miska
mommetry
near end crosstalk attenuation
Nicolaitanism
not a spark of
NRC-TOX
odd partition
open-loop tracking
ostorhinchus holotaenia
over-employment
parenchymatous system
parsaphasia
planetary mixer
polar change brightening
pre-approval letter
Pternopetalum delicatulum
resistance-reactance-ratio
resulting tree
rockpooling
save clause
SDK
shell type gear hob
solid colloid
space requests
spiral chute
spotted laurel
steering link
subling
suspicious movement
sweat secretion
Taurotragus oryx
tendovaginal hygroma
three-mode controller
tidal portion
time shaft
Transactions motive
trichocarpous
trumps
tunnel cross section
UDP-GLCUA
unauthorized investment
unclearness
unplanished
USHBP
van de Graf generator
vector tube
vseiculectomy
wershest
whitaker's
wilhelm apollinaris de kostrowitzkis
yarn of flax & ramie
zygodactyle