[电] 静电声学仪器

> I’ve been working on the railroad, all the live-long day. I’ve been working on the railroad, just to pass the time away. Can’t you hear the whistle blowing? Rise up so early in the mom. Can’t you hear the captain shouting, “Dinah, blow you

发表于:2018-11-29 / 阅读(259) / 评论(0) 分类 迪斯尼儿歌第一集

Scientists: Spiders Use Electric Fields to Move through Air Scientists have long wondered how spiders can use the webbing they make to fly. The 19th century English naturalist Charles Darwin commented on their behavior when very small spiders landed

发表于:2018-12-16 / 阅读(127) / 评论(0) 分类 2018年VOA慢速英语(七)月

When Pablo Panda Sandoval made history with 3 home runs in game one of the world series his head was probably buzzing. But when batters in chilly Detroit had the ball not quite right in the next couple of the nets, it will be their hands that buzzing

发表于:2018-12-24 / 阅读(119) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-second Science. I'm Steve Mirsky. Got a minute? Can you name those notes? Probably not. Perhaps one in ten thousand speakers of European languages has perfect pitch - the ability to recognize a note without having hea

发表于:2018-12-24 / 阅读(138) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. If you ever got picked on in the schoolyard, you might have wished for some sort of superpower, like unbeatable speed or maybe just the ability to completely disappear. Now scientists

发表于:2018-12-24 / 阅读(132) / 评论(0) 分类 Scientific American(五)月

Scientists analyzed around 2,500 of those calls, and found that the second part (sound) is nearly identical in pitch every time from each whale: 16 hertz, or four octaves below middle C. And the slight variations in frequency that do exist are only a

发表于:2019-01-02 / 阅读(157) / 评论(0) 分类 60秒科学

Hybrid cars are good for the environment. But scientists say that they might be bad for pedestrians. Because hybrids are so quiet, it can be hard for walkers to hear them until its too late. Listen to this. [quiet car sound] Thats a Toyota Prius mov

发表于:2019-01-02 / 阅读(188) / 评论(0) 分类 60秒科学

Can you name those notes? Probably notperhaps one in 10,000 speakers of European languages has perfect pitch, the ability to recognize a note without having heard any reference note first. But theres a much better chance you could successfully name

发表于:2019-01-02 / 阅读(156) / 评论(0) 分类 60秒科学

If you ever got picked on in the schoolyard, you might have wished for some sort of superpower: like unbeatable speed or maybe just the ability to completely disappear. Now scientists at the College of Wooster in Ohio say that you might have had a s

发表于:2019-01-02 / 阅读(193) / 评论(0) 分类 60秒科学

听音乐学英语 Ive been working on the railroad我一直在铁路上工作 Ive been working on the railroad, all the live-long day. Ive been working on the railroad, just to pass the time away. Cant you hear the whistle blowing? Rise up so early

发表于:2019-01-07 / 阅读(156) / 评论(0) 分类 听歌学英语

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Every year, scores of manatees are killed by boats in Floridas waters. Their plight is an ecological concern. And everyone from marine biologists to Marg

发表于:2019-01-08 / 阅读(133) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. Hybrid cars are good for the environment, but scientists say that they might be bad for pedestrians. Because hybrids are so quiet that can be hard for wa

发表于:2019-01-08 / 阅读(140) / 评论(0) 分类 Scientific American(五)月

We humans are pretty good at communicating with sounds other than words. But how much of this is hard-wired, and how much do we pick up from others? To find out, researchers recorded the nonverbal sounds of people born deaf, as they responded to a ra

发表于:2019-01-08 / 阅读(179) / 评论(0) 分类 Scientific American(十一)月

Blue whales off the California coast make calls that, sped up 10 times, sound like (sound of two-part call). The original is a wall-rattling frequency too low for us to hear. Scientists analyzed around 2,500 of those calls, and found that the second

发表于:2019-01-08 / 阅读(120) / 评论(0) 分类 Scientific American(八)月

Country Music Ladies Put Men in Their Place American country music lyrics often describe women as they might appear in mens dreams. This is especially true of songs by many male artists. But the songs by Maddie Marlow and Tae Dye are different. The t

发表于:2019-01-12 / 阅读(142) / 评论(0) 分类 2015年VOA慢速英语(九)月

Boston Symphony Makes Music in Mountains When Serge Koussevitzy, the Russian-born conductor of the Boston Symphony Orchestra, opened Tanglewood in 1937, he chose an all-Beethoven program, including the Pastorale Symphony. When conductor Christoph von

发表于:2019-01-13 / 阅读(120) / 评论(0) 分类 VOA标准英语2012年(七月)

By Alisha Ryu Nairobi 18 November 2009 A U.S.-flagged container ship which was hijacked by Somali pirates seven months ago has been attacked again off the coast of Somalia. Pirates were unsuccessful in their second attempt to hijack the Maersk Alaba

发表于:2019-01-14 / 阅读(156) / 评论(0) 分类 VOA标准英语2009年(十一月)

The Tiangong-2 space lab, though adopting the structure of Tiangong-1 without too many changes in appearance, has been designed to function much stronger than its predecessor. Zhu Congpeng, chief designer of the lab, says they've focused on a variety

发表于:2019-01-19 / 阅读(143) / 评论(0) 分类 2016CRI中国国际广播电台

通知与确认 Acknowledgments Confirmations 通知对方接到来信Acknowledging receipt of letters1. Dear Mr/Ms,Thank you for your letter No. A-3 of 6th May, offeringus 6 UI-4 Viewdatas. We have passed it on to ourTechnical Department for their c

发表于:2019-02-06 / 阅读(167) / 评论(0) 分类 实用英语

作为一个不在意是否成为明星的人,Blake Shelton 在过去的几年中确实闯出了名头。 Now i love country music And i guess i always will But these days, when i turn on the radio It's just not the same thrill I like a song that g

发表于:2019-02-18 / 阅读(120) / 评论(0) 分类 美国乡村音乐
学英语单词
a loc
abrasive lapping machine
acanthopores
acedious
andringitra mts.
auxiliary brake
awkward customer
Ban Thap Yai Chiang
banishers
batch card reader
bayings
born-to-be-wild
breeding behavio(u)r
cerapteryx graminiss
Chateau-Arnoux
chlorophthalmus nigromarginatus
Chlorops oryzae
chorea school-made
come to attention
communication services
concubinator
constant-rate injection method
copper(ii) tellurate
delivered duty paid
detailedness
differential surge-tank
direct materials cost
disengaging rod
divide off
do the outside edge
Eshtemoa
Euler polygons
euthermoplankton
excretory function
family dependents
fast track scheduling
fibrous grease
filigree glass
flared tube
foreplane
Fort Assiniboine
Garde, C.de
gendered division of labor
genus Sarracenia
governmentalities
gracely
groisman
gurbirs
Hanafi
hard image
hysterium thujopsidis sawada
inspection and quarantine
ion membrane
isatropyl-cocaine
jibboom
layered system
light sensitive glass
Manus Prov.
mature beef
Menopon gallinae
middlebracket
mou-tai chiew
nondigested
nosopathology
nuclear isomers
of no utility
overhead trolley conveyor
partitive cases
poikilohydric plants
posterodistal
propaganda war
prosperous trade
protonating
radiocytology
rectangular cartesian coordinate system
relative peak sharpness
RETROPINNIDAE
Rima palpebrarum
rub salt into the wound
Saasveld
sandwich rolling
senior status
set a watch
shot-sand separator
skew axis
slip flask
solid anchor
spindleworms
static modulation
statutory backing
summarizing instruction
suspend proceedings
temperature antiseptic effect
tittup(p)y
toxoptera aurantii
trimmer arch
unfezable
Vertical Milling
Villanueva de Algaidas
vindicative
visibles
welfarism