时间:2019-03-06 作者:英语课 分类:英语时差8,16


【英语时差8,16】用一根绳子连接地球和同步卫星(下) - 英语课
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  1. 1 【英语时差8,16】用一根绳子连接地球和同步卫星(下) 英语课
英语课

When you haul 1 something up by rope, you generally think of the object being lifted as the weight. Something we don’t consider is that the rope has to be able to lift itself too. Lift itself!?! What does that mean? Think of it this way. If a ten-foot rope is hanging straight down, the top one inch is supporting the weight of almost ten feet of rope. That’s no problem, but what about a hundred feet? Still no problem? How about a hundred miles? In fact, no rope could support 22,000 miles of its own weight. Not even a cable of the mightiest 2 steel would work. In fact, there is no material you could use that wouldn’t snap 3 under its own weight long before it reached from earth to satellite. And that’s without even adding the weight of the cooler!



vt./n.(用力)拖,拉,(用车等)拖运,运送
  • It was a long haul home and we arrived exhausted.搬运回家的这段路程特别长,到家时我们已筋疲力尽。
  • The rope stood up under the strain of the haul.这绳子经受不住紧拉。
adj.趾高气扬( mighty的最高级 );巨大的;强有力的;浩瀚的
  • \"If thou fearest to leave me in our cottage, thou mightiest take me along with thee. “要是你害怕把我一个人留在咱们的小屋里,你可以带我一块儿去那儿嘛。 来自英汉文学 - 红字
  • Silent though is, after all, the mightiest agent in human affairs. 确实,沉默毕竟是人类事件中最强大的代理人。 来自互联网
n.啪地移动,突然断掉;v.猛咬,咬断,谩骂,砰然关上
  • He broke off the twig with a snap.他啪地一声把那根树枝折断了。
  • These earrings snap on with special fasteners.这副耳环是用特制的按扣扣上去的。
学英语单词
Abelian scheme
Aglaonema siamense
Ammassalik
appointment reason
Ascaridia galli
aseboquercitrin
at the hands of sb
bellair
bill of mortality
binomial antenna array
bullet-shaped virus
bus fuel
ccf
chaos-theory
cheema
cincoms
class diagram
COBOL compiler
conditional extremum
cortical ooplasm
curateless
customs house broker
cytogeography
data control group
dinitrophenylhydrazone
dzos
easy-open
ekins
elbow through
execute instruction
exemption for dependents
family Euglenaceae
fari
fixed pawl
flux sensor
Freq-Range
geodesies
glamorizations
Glycyrrhiza malensis
gobbled up
gyratory pillar shaft crusher
harvick
hexasome
hotel-owner
ice-breaking tug
immunotransmitter
import substituting
imprieve
isomere
Itapicuru
lecanora pallida
leg of fillet weld
lessens
listing ship
magnetic crack detection
magnetic rotation
march reconnaissance
margopalpebrae
mussoes
nanoprogramming memory
national requirements
northtown
nutmeg families
OH process
on-line terminal
Plancher-Bas
porphyrulas
pressure alopecia
progressive hardening
prucalopride
relief printing ink
Remaliah
retrench expenditure
ridge digger
rival supply
semicellulose
Serbian Orthodox Church
shlep
slag slot
slo mo
spring bracket
steam ejection system
steel reinforced aluminium wire
step change in wall thickness
submerged aerial
Sulfojoseite
surveying compass
tabloidings
theil's inequality coefficient
thermal agitation noise
Tipaque
trade cut
triangularpath gas laser
unreal
unsaturated soil
useful flow area
vitrinernite
welborne
Westmoreland County
winch table
Zorzor
zozymodes cavipes