时间:2019-03-06 作者:英语课 分类:英语时差8,16


英语课

 Acetylene and hydrogen molecules 1 are disappearing from the atmosphere of Saturn’s moon, Titan. It’s a mystery befitting Sherlock Holmes’ investigative skills, a mystery NASA scientists hope to crack. About fifty percent larger than Earth’s moon, Titan is Saturn’s largest satellite and the only moon with an atmosphere. It has long been known for its methane 2- and ethane-rich atmosphere, and has intrigued 3 scientists when they discovered lakes of liquid methane on its surface. Titan is a frigid 4 place, with temperatures hovering 5 around minus three hundred degrees Fahrenheit 6, but despite the cold, scientists wonder if Titan may harbor life. Life as we know it on Earth is carbon based, and Titan has the same hydrocarbon 7 building blocks for living organisms. But, can life exist at such low temperatures, and if it does, can we detect its presence? Missing molecules may be our first clue. Hydrogen molecules should be produced when ultraviolet light breaks down methane and acetylene molecules in Titan’s atmosphere.



分子( molecule的名词复数 )
  • The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
  • Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里,大分子裂变为小分子。
n.甲烷,沼气
  • The blast was caused by pockets of methane gas that ignited.爆炸是由数袋甲烷气体着火引起的。
  • Methane may have extraterrestrial significance.甲烷具有星际意义。
adj.好奇的,被迷住了的v.搞阴谋诡计(intrigue的过去式);激起…的兴趣或好奇心;“intrigue”的过去式和过去分词
  • You've really intrigued me—tell me more! 你说的真有意思—再给我讲一些吧!
  • He was intrigued by her story. 他被她的故事迷住了。
adj.寒冷的,凛冽的;冷淡的;拘禁的
  • The water was too frigid to allow him to remain submerged for long.水冰冷彻骨,他在下面呆不了太长时间。
  • She returned his smile with a frigid glance.对他的微笑她报以冷冷的一瞥。
鸟( hover的现在分词 ); 靠近(某事物); (人)徘徊; 犹豫
  • The helicopter was hovering about 100 metres above the pad. 直升机在离发射台一百米的上空盘旋。
  • I'm hovering between the concert and the play tonight. 我犹豫不决今晚是听音乐会还是看戏。
n./adj.华氏温度;华氏温度计(的)
  • He was asked for the boiling point of water in Fahrenheit.他被问到水的沸点是华氏多少度。
  • The thermometer reads 80 degrees Fahrenheit.寒暑表指出华氏80度。
n.烃,碳氢化合物
  • During incomplete combustion some of the hydrocarbon fuel is cracked.在不完全的燃烧中,一些烃燃料裂解。
  • The hydrocarbon must be an alkene.这个碳氢化合物必定是烯烃。
学英语单词
(of a silkworm) molt to go through the chrysalis state
amethystanthus japonicus nakai
Ampcoloy
antipodism
arsentsumebite
asymmetric conductivity
autogyro rotor
bacterial calls
ballet british colombia
bioocclusion
biotropic
birth control measure
carried-out
Caryophyllineae
cell granulations
chimney exit diameter
chresard
closer-in
consultation committee
coolant distribution unit
cryptands
Cupressus sempervirens
daylight robberies
direct-geared
dito
domestic staff
electronic band
exceptional performance
eye-blinks
fixture for boring machine
flood-level rim
formrs
green machine
hisds
homatropine eye drops
i could have wept
Iepê
igloo
imagistically
intropressions
isooctyl alcohol
joint and several obligation
laser raman photoacoustic spectrometry
lebanese pounds
line terminator
love beat
main spar
mapmakings
mat-forming
mecke
media check
meta-anthracite
methylmetal-crylates
mixed tumor of submaxillary gland
monarchia
moss locust
muckamuck
Muhamut
musculoligamentous
nitrocellulose varnish
nonstratified crown
Norheimsund
onagers
online monitoring
ooxanthines
order Spirochaetales
oxoglutaric
particulars of goods
pestiferously
postheparin
potato beans
power supply main
precipitron
press agencies
PsLogList
refolds
relieving oppression and masses
rere-county
residence half
restimulates
self-directing missile
single-spindle lathe
slab amplifiers
sode ash
soft-pedalleds
sphericities
static MOS inverter
stratified sand
stringifying
subsonic ejection seat
swallowers
systems analysis and design
target.com
the means of production
tourism area
true folding
uncastigated
uniform heat flux
vestibule floor
visual relief map
width of ruled area