(集合小管)主细胞,明细胞

principal cell的用法和样例:

例句

  1. Tight junctions between adjacent principal cells permit the formation of a specific microenvironment in the lumen of the epididymis that is essential for sperm maturation.主细胞之间的紧密连接将附睾管腔形成一个特殊的微环境以促进精子成熟。

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(204) / 评论(0) 分类 VOA2003(下)-环境与健康

CHAPTER SEVEN READING [00:07.78]A new newspaper [00:11.86]Soon after the term started,some Grade Eight students at May field School [00:20.32]wanted to publish a newspaper. They held a meeting. [00:26.80]Later,Arthur wrote this report about their mee

发表于:2018-12-01 / 阅读(505) / 评论(0) 分类 上海牛津初中英语八年级

[00:00.00] Uint 7 [00:02.90]Lesson 25 [00:06.14]New word and expression [00:10.08]manners [00:11.52]pl.礼貌 [00:12.96]Zak [00:14.18]n.扎克 [00:15.41]Epps [00:16.69]n.艾普斯 [00:17.97]principal [00:19.45]n.校长 [00:20.92]seat [00:22.24]n.座位

发表于:2018-12-10 / 阅读(182) / 评论(0) 分类 广州初中4A

[00:00.00] Unit 3 Sports Day [00:04.28]A It's Sports Day soon Mr Li,the PE teacher,is talking to the students. [00:12.54]Listen,look and say. [00:16.90]It's Sports Day next week.Let's get ready. [00:21.58]What can you do? [00:24.63]I can throw a ball

发表于:2018-12-13 / 阅读(153) / 评论(0) 分类 深圳小学(深港版)第七册

Lesson58 Part Ⅰ Lesson 58 Part Ⅰ Warming-up Exercises Phonetics: Homonyms 1. a. principle b. principal 2. a. passed b. past 3. a. seize b. sees 4. a. for b. four 5. a. hear b. here 6. a. scene b.

发表于:2018-12-27 / 阅读(200) / 评论(0) 分类 英语听力入门 (全四册)

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(173) / 评论(0) 分类 国家地理2008年

Tina was going back to school for her third masters degree. She was a Special Education teacher, but she couldnt take her job anymore, so she had quit. The kids were out of control. There were too many of them in one classroom for her to manage effec

发表于:2018-12-31 / 阅读(140) / 评论(0) 分类 365个英语简短小故事

Grammar Girl here. Today were going to recall that the principal is indeed your pal, but well also see that a principal can be so much more. In this episode well talk about the various ways to use principlethats p-l-eand principalthats p-a-l. (These

发表于:2019-01-02 / 阅读(157) / 评论(0) 分类 英语语法 Grammar Girl

1. Congratulations for the new baby! 祝贺喜添丁! 2. Congratulations on the new addition to your family. 祝贺你们家喜添丁。 3. Congratulations on the birth of your child. 祝贺你们家喜添丁。 4. Congratulations on bringing this

发表于:2019-01-11 / 阅读(117) / 评论(0) 分类 英语口语

By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As

发表于:2019-01-11 / 阅读(159) / 评论(0) 分类 2007年VOA标准英语(九月)

By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

发表于:2019-01-13 / 阅读(124) / 评论(0) 分类 VOA标准英语2008年(五月)

RACHEL MARTIN, HOST: In North Carolina, more than 60,000 students are starting another week without school. Their districts are still taking stock of the damage caused by Hurricane Florence, and many of the students and teachers who evacuated are sti

发表于:2019-01-17 / 阅读(143) / 评论(0) 分类 2018年NPR美国国家公共电台9月

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(147) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

发表于:2019-01-31 / 阅读(147) / 评论(0) 分类 VOA常速英语2008年(四月)

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(293) / 评论(0) 分类 英语新闻

I've cheated in school when I thought that I could get away with1 it. I'm not proud of it and I don't usually feel very good about myself afterward, but sometimes it's the only way possible to survive in a pressure cooker2. My parents are really set

发表于:2019-02-06 / 阅读(136) / 评论(0) 分类 阅读空间

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(256) / 评论(0) 分类 趣味英语

1 He came to China to hold a talk about the commission for his new business. 他来中国是洽谈有关生意中的佣金问题。 2 What about the commission? 佣金是多少? 3 Usually a 1% commission is given to our agent. 一般情况下,我们

发表于:2019-02-09 / 阅读(147) / 评论(0) 分类 实用英语

By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia

发表于:2019-02-17 / 阅读(159) / 评论(0) 分类 VOA常速英语2007年(十二月)

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(209) / 评论(0) 分类 英语新闻
学英语单词
absent extension advice
adrenocortical insanity
airtight assembly
antenna side lobe
AUEW
basket pouring
Bianchi's nodules
Bilto
bridle moor
built crank
business diagnosis
buying temperature
by the quart
cateyed
chamfer point diameter
chase in brick wall
chewed on
clearing heat and eliminating phlegm
coachwhip snake
common-law trust
complex Euclidean space
confessionals
connectograms
cryptotope
demyelinizing neuropathy
description and focus
digestly
digital-analogy
Eckehart
effective half life
electrohemodynamics
employ'd
epidemiologist
epidermal skin graft
external exudative retinopathy
folded mountain
Formad's kidney
fracture property
fulminating epidemic of tuberculosis
genus Liparis
hand antiseptic
have a basinful
heel nailing machine
hold one's judgement in suspense
incarnations
Iwase-gawa
Jilava
keyboard buffers
leonid fyodorovich myasins
libertysurf
load regulation
lycopodium casuarinoides spr.
magestin
malt-comes
massoudi
measuring-range
melburnians
melfoil
Moirax
Mount Denison
optical communication
optional discharging port
panspermatists
Pertya bodinieri
pocket icebreaker
proceeding with
pseudograpsus setosus
pusher collar
recombinant DNA
rectangular-to-polar graphical solution of array
red cents
redds
resmelted
reverseimpulse
sagum
same-sex marriages
scincosaurids
scrub clearer
senka
single insurance
sour felling
stopping cross section
strerch thrust
supercharging arrangement
suprapharmacological
Surtees
sweating of wax
thaw holes
tilemaps
tiller planter
train on
trickle-down government
uncolorability
underhung window
unwlap
uterine catarrh
van der waals energy
vexillology
video-messaging
voluminous
wheel artist
yield the palm to sb.