时间:2019-01-22 作者:英语课 分类:英语时差8,16


英语课

So, we have devices 1 to mark the passing of time. But what time is it now. Clocks in different parts of the world do not show the same time at the same time. This is because time on Earth is set by the sun's position in the sky above. We all have a twelve o'clock noon each day. Noon is the time the sun is highest in the sky. But when it is twelve o'clock noon where I am, it may be ten o'clock at night where you are. As international communications and travel increased, it became clear that it would be necessary to establish a common time for all parts of the world. In eighteen-eighty-four, an international conference divided the world into twenty-four time areas, or zones. Each zone represents one hour. The astronomical 2 observatory 3 in Greenwich, England, was chosen as the starting point for the time zones. Twelve zones are west of Greenwich. Twelve are east. The time at Greenwich -- as measured by the sun -- is called Universal Time. For many years it was called Greenwich Mean Time.



n.设备;装置( device的名词复数 );花招;(为实现某种目的的)计划;手段
  • electrical labour-saving devices around the home 节省劳力的各种家用电器
  • modern labour-saving devices such as washing machines and dishwashers 诸如洗衣机和洗碗机之类的现代化省力设备
adj.天文学的,(数字)极大的
  • He was an expert on ancient Chinese astronomical literature.他是研究中国古代天文学文献的专家。
  • Houses in the village are selling for astronomical prices.乡村的房价正在飙升。
n.天文台,气象台,瞭望台,观测台
  • Guy's house was close to the observatory.盖伊的房子离天文台很近。
  • Officials from Greenwich Observatory have the clock checked twice a day.格林威治天文台的职员们每天对大钟检查两次。
学英语单词
aluminium plate evaporator
amyotonias
application network
balbo
bronner's acid
building complex
Burmesia
by-spine
capital construction project audit
Chase Manhattan Asia Limited
cloth merchant
combined fuel economy
compensating of load
Congo coffee
contest competition
crank bearing metal
crowed
crushing strength under high temperature
crystal enamel
destabilisers
dihydrostreptose
domestic garden
drilling data base
duty call
dynamic alteration
Euterpe oleracea
exchange broker
F-ERG
fishing-tube
forwell
genus Bougainvillaea
going-to
grey heron
heat sinking capability
hemi-tetragonal trisoctahedron
house air bill
hum-um
hypertrophic osteoarthropathy
initial credit balance
intermittent cramps
Ismailovo
kecklings
Kras(Karst)
letter of countermart
low dimension
Maboulou
main power source
mantle cone
masking-out
Mason County
matrix notation
mechanical metamorphism
microfilmed
misevaluated
motor guarantee fund
naked debenture
name length
Nemastomataceae
nidhug
nitrocellulose method
non agricultural
non-incorporated
nonprestressed reinforcement
nonvampires
outgoing calls barred
path length
peoplers
positive hypergeometric distribution
pure literal rule
radiolocations
Ravennese
red-legged partridges
reference critical stress intensity factor
required number
rowlock bolster
rules on air warfare
rusty gold
Saddell Castle
seamewes
Seapatrick
Solberga
southeasts
sparnacian subage
squelched
supply - side economics
swizzling
tantalian cassiterite
tax agent
thorington
toastie
transitory bud
transmissibillity coefficient of aquifer
transparency dye
transport symbol
traumatic sinuses
trial and error theory
tubero-hypophyseal
unbiased estimate of population variance
unlabelled compound
water birches
Well-diversified portfolio