辛烷值助剂

What Do Octane Numbers Mean? At the gas pump, you have a choice of octane numbers. 87? 93? Whats the difference? To explain octane numbers, lets take an imaginative leap into the internal combustion engine of a car. Inside the cylinders are combustio

发表于:2018-12-31 / 阅读(144) / 评论(0) 分类 英语听力文摘 English Digest

WELLINGTON, March 23 (Xinhua) -- Fuel prices are at their highest level in nearly three years in New Zealand on Wednesday after the four main oil companies increased their prices by 3 cents. Shell, Caltex, BP and Mobil have raised the price of 91 oct

发表于:2019-02-02 / 阅读(135) / 评论(0) 分类 英语新闻
学英语单词
Adc.
almstead
alveolar basal bone
base-maps
beater chest
bill-of-material
blackletters
blastomycess
bonding energy
boom cable
calculated distribution
Celastrales
cellosan
cheek of crankshaft
cloudbanks
cost a packet
dark factory
dental casting machine
dorsal slits
double screw straight tail lathe dog
excess reserves
Fannia scalaris
FCB (fast cut back)
feel-bad
fixed encoded theodolite
fluorescence probe
fore course
four for nothing
fundamental group of a topological space
geochemical logging
glass board
gloriable
glucoscillaren
go into exile
ground game
hamano
hartrampf
He plays the piano for his own enjoyment
helvin
hotwashes
i-spoused
Imingen
inclination of wave front
isotopic concentration
isthmus of limbic lobe
K-bentonite
Kagulumira
Kokubunji
kydland
latch bracket
Lawson, Mt.
lepidobatrachus laevis
long fingers
make land
manget-valve
manoff
mazarine hood
methyloestradiol
mobile apparatus
moisture-resistant insulation
Mysis
non fluid oil
orphare
outlanes
overclaimed
panharmonic
pawson
photon camera
plothy
pulsed short wave therapy
quadruplicates
quelpart
radiolandia
Robles' disease
ruffage
Saussurea stella
self-recognition
semiluxation
sheveret
shielding cooling system
short wave radio transmitter
simple linkage brake mechanism
sliding-scale tariff
spent nuclear fuel
stacking elevator
statistica distribution
steimy
stylewave
sub-mucosa
suborder thyreophoras
surface weld
surfacing with band-electrode
Symplocos heishanensis
system standard format sequential file
the gipsy
tranship cargo
transverse stay
Uiju
ULF communication
was-hael
which way
winsocks