时间:2019-01-22 作者:英语课 分类:自然百科2012年


英语课

 Every time we send aspacecraft to answer questions, we end up asking more.


 
Clearly, a return to Jupiter isn't to stars.
 
(Here we go.)
 
In 2003, with fuel andpower running low, Galileo's 14-year odyssey 1 was brought to an end,deliberately to ensure Europa remained uncontaminated by an out-of-controlspacecraft with a load of earthly bacteria.
 
I was responsible fo rGalileo orbiter and on purpose, my friends always remind(ed) me to say, ‘Hi,make sure you tell people it was on purpose.’ So the idea was to, you know,come into the atmosphere of Jupiter with(in) a ferocity that it would break up and be destroyed, you know, pretty much right away. It's now part of Jupiter.
 
Meanwhile, back on Earth,our return to Jupiter is being planned. In the construction bays of Lockheed Martin, the Juno spacecraft is taking shape,getting ready for its close encounter later in the decade.
 
And looking ahead, NASA andthe European Space Agency are joining forces to send two spacecraft/, one each to orbit Ganymede and Europa. This/essential detailed 2 reconnaissance / will set the stage for the ultimate goal of exploring an alien ocean by robot submarine.
 
Europa is a good place for robots. Why? Number one,it’s a hackable long way away our propulsion systems that are now ready for/to takeover people there. And second, the radiation /environment on the surface of that moon is dangerous as hell. Five minutes’ exposure to an unshielded our humanand you will see the lethal 3 rem dose.雷姆剂量So you don't want to put people on Europa. But we can definitely put robots there. And is there a reason to go? You bet, right? It's a totally unexplored world and it probably has the highest probability of life off thisplanet.

 



n.长途冒险旅行;一连串的冒险
  • The march to Travnik was the final stretch of a 16-hour odyssey.去特拉夫尼克的这段路是长达16小时艰险旅行的最后一程。
  • His odyssey of passion, friendship,love,and revenge was now finished.他的热情、友谊、爱情和复仇的漫长历程,到此结束了。
adj.详细的,详尽的,极注意细节的,完全的
  • He had made a detailed study of the terrain.他对地形作了缜密的研究。
  • A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。
adj.致死的;毁灭性的
  • A hammer can be a lethal weapon.铁锤可以是致命的武器。
  • She took a lethal amount of poison and died.她服了致命剂量的毒药死了。
学英语单词
.bw
actio in distans
administrative litigation act
aitch-bone
amanitines
annuals silkworm
arche-
artificial aggregate
asphalt(ic) cement
back conductance
bialosky
bidirectional ring
binding identifier to name
brinded
calceus
candidate cell
carcinoma of nasopharynx
catalytic surface
category ii components of approach lighting system
chart name
combination thermal cracking
coolant outlet plenum
cotty wool
coupling of variable amount of filling
cousin-aunt
Croton purpurascens
cryptocystean
decrees
depth recording device
dermatitis erythematosa
desternalization
dispraiseth
e-passport
elevator liner
enkephaline
fasts
fowlery
give someone a ring
grape tomatoes
grout cover
grown sea
gynomonoecious(darwin 1877)
hexagonal grid
hiv-prevention
hyperneutral symmetry
hyperthelesia
in series and parallel
in the semblance of
internecive
intervention study
iodobromite (iodian bromargyrite)
iodonium salt
isopachy map of coal seam
kalkas
ketoacidosis
lifting test
manila wrapping
marine internal wave
mechanical interlocks
message contents
meteorological phenomena
miantonomo
miao n? nung pei
mimiteller
monochrome presentation
multiply connected track circuit
oceanographic investigation
orophytes
pantrophic
parchment worm
penicillium vinaceum
Pepto-Bismol
Pipli
pourpoint
pure projective geometry
Raz, Pte.du
realm entry
redias
relativised
revenges
rhizobial
sales book
screen hole
self-correctives
shared cache
short stress path rolling mill
sign flipflop
simple piston rod
stay rod
strong jelly
stud-earring
system catching
tandemly
territory of use
the top end
totiuss
travel guide
trial mortar
Vanadio-laumontite
vein banding
viruliferous
Wafī, Jab.al