1-氯辛烷

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(57) / 评论(0) 分类 英语听力文摘 English Digest

If you are like many language students, you might have a problem with procrastination. Perhaps you are slow to do homework or study for a test. Maybe you do not like to study or you become distracted while studying. Whatever the case may be, learning

发表于:2019-01-02 / 阅读(358) / 评论(0) 分类 2017年VOA慢速英语(六)月

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(54) / 评论(0) 分类 英语新闻

BEIJING, Aug. 8 (Xinhua) -- China on Wednesday started to review anti-dumping measures it imposed on chloroprene rubber imported from a Japanese company, the Ministry of Commerce said. The move came after the ministry received complaints that Japan E

发表于:2019-02-05 / 阅读(116) / 评论(0) 分类 英语新闻

Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele

发表于:2019-02-08 / 阅读(87) / 评论(0) 分类 VOA标准英语2010年(一月)

RABAT, Dec. 26 (Xinhua) -- The Moroccan national team coach Rachid Taoussi announced Wednesday the squad for the finals of the African Cup of Nations (ACN-2013) in South Africa from January 19 to February 10. Taoussi left out Queens Park Rangers forw

发表于:2019-02-08 / 阅读(80) / 评论(0) 分类 英语新闻
学英语单词
alloy tape
Altaic, Altaian
altogether
annuity savings deposits
answer next lamp
anthia
apostrophically
Aulopus
autoportrait
balance equation
basic operator control command
Bernisdale
betel nut
Bislig B.
butul ricinoleate
cam control
carriage motor
chelmnoes
chromosomal domain
configuration of education
crude ideas
cultic
cyclodehydrations
defensive behavior
dreadlocked
driving chuck
E &. OE
electron-beam melting gun
electronic telephone circuit
endless screw
erythrocyte aggregation
explorist
extended protest
extraction agent
fabricated vessel
faience mosaic
Folium Aconiti Kusnezoffii
Forbidden Signs
functional interchangeability
gentleman-scholar
gholz
gradient terraces
groon
ground proximity warning system
H carrier system
heat press
heat puncture
heid
hennotic
homodynamic gene
infinite space
innless
inspection of tank
investment in stock
jigget
job analysis
Kate O'Flaherty Chopin
kaurit
kryolith
lactinated
leakage method
legena
lolion
lose lose
magnetic-core antenna
Mkswap
mulhooley
nacky
nanovolt
nixes
numismatician
octillionfold
overdoneness
parameter for technical condition of vehicle
pick-and-place robot
piping design
point of perception
pootin'
precision night viewer
primary metal
principal book
profit ratio of total liability and net worth
public access broadcast
Ratatosk
rodentium
rollerdrome
salt tolerant microorganism
self-watering device
Shinsei
sirloin steak
special task
standard memory
tappe
thermally stable polymer
thermionic energy conversion
to ash
Trailliaedoxa gracilis
transmission output
undamaged value
vapor flux
ventricular premature beat
watch your mouth