时间:2019-01-30 作者:英语课 分类:60秒科学


英语课

Seismologists spend a lot of time listening to the earth. Ocean acoustic 1 monitors have been providing information on the earth’s vibrations 2 since the 1930’s. But there are other sounds those monitors pick up as well, for instance those of waves and choppy waters. These sounds are usually considered just noise and are filtered out of the equation.


But researchers now realize that paying attention to what was previously 3 considered noise can help monitor global climate change. That’s according to a study in a recent issue of the journal Science.


In shallow coastal 4 waters, the breaking waves directly hit the ground and cause vibrations. In deeper waters, waves traveling in nearly opposite directions create a pulse that travels all the way to the ocean floor and causes new vibrations that can travel long distances.


Measured at 30-second intervals 5, these are called microseisms. They’re unique and not detectable 6 on land. And they can help us understand more about the frequency, intensity 7 and duration of storms.


An 80-year archive of acoustic information already exists. The length, stability and regularity 8 give these data a leg up over a sometimes spotty historical scientific climate record. Another tool to understand more about our changing climate.


—Cynthia Graber


 



adj.听觉的,声音的;(乐器)原声的
  • The hall has a fine acoustic.这个大厅的传音效果很好。
  • Animals use a whole rang of acoustic, visual,and chemical signals in their systems of communication.动物利用各种各样的听觉、视觉和化学信号来进行交流。
n.摆动( vibration的名词复数 );震动;感受;(偏离平衡位置的)一次性往复振动
  • We could feel the vibrations from the trucks passing outside. 我们可以感到外面卡车经过时的颤动。
  • I am drawn to that girl; I get good vibrations from her. 我被那女孩吸引住了,她使我产生良好的感觉。 来自《简明英汉词典》
adv.以前,先前(地)
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
adj.海岸的,沿海的,沿岸的
  • The ocean waves are slowly eating away the coastal rocks.大海的波浪慢慢地侵蚀着岸边的岩石。
  • This country will fortify the coastal areas.该国将加强沿海地区的防御。
n.[军事]间隔( interval的名词复数 );间隔时间;[数学]区间;(戏剧、电影或音乐会的)幕间休息
  • The forecast said there would be sunny intervals and showers. 预报间晴,有阵雨。
  • Meetings take place at fortnightly intervals. 每两周开一次会。
adj.可发觉的;可查明的
  • The noise is barely detectable by the human ear.人的耳朵几乎是察觉不到这种噪音的。
  • The inflection point at this PH is barely detectable.在此PH值下,拐点不易发现。
n.强烈,剧烈;强度;烈度
  • I didn't realize the intensity of people's feelings on this issue.我没有意识到这一问题能引起群情激奋。
  • The strike is growing in intensity.罢工日益加剧。
n.规律性,规则性;匀称,整齐
  • The idea is to maintain the regularity of the heartbeat.问题就是要维持心跳的规律性。
  • He exercised with a regularity that amazed us.他锻炼的规律程度令我们非常惊讶。
标签: 60秒科学
学英语单词
abyssal facies
adenotrophic viviparity
adiabil
alcohol dehydrogenase (adh)
anomalous interference color
Archimedes' axiom
arcuate vein of the kidneys
autotitrimeter
be open to an offer
bellsouth
below-threshold operation
bistable switch
bolig
bridge contact
brittlebush
canterburies
causate
central cartilage
chaotic facies
choripetalous coralla
coal ash cement
deep and harsh voice
defamatory matter
depth probe
disraying
distributing fin
Dit I.
doubly-linked linear list
ensignhood
ethyl phosphate
fair lead
famciclovir
feed expansion honing
fliver
Galegu
Gallner
gaults
gisla
hematidrosis
Herriot, Edouard
Hoekestra balance plastometer
HVPG
Ice-break
ichno-genera
in person
in process testing
in the fury of battle
in-phase particles
instrumental neutron activation analysis (INAA)
ivy berry
l. e. s.
lannons
Linkuva
local equal potential bonding
Lonicera humilis
low velocity beam scanning image pickup tube
lyticase
masliah
massic energy imparted
Morrill Tariff
N-corrected true metabolizable energy
Niemann-Pick disease
nonpathologists
nontrading
Oguchi'S disease
ojeks
penetrameter sensitivity
phenylboron difluoride
photobiophysical
Pilea amplistipulata
present indicative
probability current
programmed multiline controller
pseudoconcavity
ratio separtor
ratyl
rhombs
seal mechanical
self-energized seal
snies
solid caustic soda
spermatopoietic
stanways
stimulating factor
structural interpretation
supramaxilmal
toby fillpot jugs
toolsmith
trolley-car
unjocularly
us aerospace
vampirish
versiform
waivery
Waterval-Onder
wave age
weingaertneriella longiseta
well-placed
wheat-field
working poor
wrayed
write-a-thons