熔融铝,液态铝

Called the hellhole of creation, the Afar Triangle lies at the junction of three continental plates which spread further each year. The oldest living lava lake and one of the lowest points on the planet. Geologists here can study the process that for

发表于:2018-12-30 / 阅读(113) / 评论(0) 分类 国家地理2007年

The aluminium smelter at Tiwai Point near Invercargill opened in 1971. It had a contract to buy cheap electricity, generated by hydro-electricity from Lake Manapouri which is not far away. Now in 2013, 13% of all electricity generated in New Zealand,

发表于:2018-12-31 / 阅读(59) / 评论(0) 分类 新西兰英语

But despite the Mongol's attempts to master siege warfare, the Chinese were still much more advanced in their military technology. They responded by filling bombs with crude oil, molten metal, chemica

发表于:2019-01-02 / 阅读(48) / 评论(0) 分类 成吉思汗

如果随便翻阅雅思阅读真题,我们常常会发现它涉及的词汇广度难度绝对不容小觑,甚至出现在GRE红宝书里的超强词汇也会频频亮相。于是,不少同学在初识雅思时都会产生畏难情绪,滋生出

发表于:2019-01-17 / 阅读(92) / 评论(0) 分类 实用英语

We were left with this atmosphere made of molten rock and vaporous rock. It took millions of years for that atmosphere to fall out and to be replaced by an atmosphere made up of nitrogen and carbon dioxide and water vapour. These new gases came from

发表于:2019-01-23 / 阅读(36) / 评论(0) 分类 探索与发现2014年

Like Mercury, the earth takes a beating from the sun's violent temper. Flares, sun storms and other solar hissy fits can cause electronic mayhem for the satellites that roam above our heads. Fortunately, the earth is protected from this radiation by

发表于:2019-02-15 / 阅读(168) / 评论(0) 分类 自然百科2012年
学英语单词
Access group.
adherent water
american smokewoods
appropriate public authority
aquaday
asphalt mixture
atmospheric scattering
atomic hydrogen welding
bacillus mycoids
Batyrevo
beach pancakes
bevel-woven material
boiler water drum
bombarded with
bowing down
bring-up test
broche quilt
Buclard
by type
C.Z.D.
Chiguana, Salar de
class-distinction
committor
countyhood
coursy
culverkeys
daar
delabializations
depositional
Diospyros glaucifolia
Dokri
DORNA
dorsal spinal nerves (or thoracic nerves)
double Rueping process
early-life
ethelred iis
full-step
ginnalin
gossib
guard position
hamus
hell ship
hereditary defect
hermeneuticist
hole-and-slot resonator
horizon reference
i timothies
intempery
intimate wear
into focus
invoice account
Inzer
Kayak I.
laguna madre
limbering
Local Security Authority
long term treatment
macrocycle
magnisum carbonate
map diagnostic integration language
marketgoer
master track pin
mohlenbrock
musheshe
neoprene adhesive
nondeforming steel
nuc-
nyntene
obamacare
Oberonia arisanensis
on a barter basis
overland transportation cargo insurance
overly metallization
Philosophiae Doctor
pogie
poteat
Robertsonian fission
self-propelled grader
self-registering thermometers
Senear-Usher disease
silk reservoirs
SPZD
sub paragraph
subsentential
syhadrite (syhedrite)
thickness of soil layer
thrans
thrive in a region
tied up working capital
time compression tactical communications
top banana
Triodanis perfoliata
tuned-radio-frequency transformer
turnus
unlean
upper bound elemental technique
vaccination of plants
vocational rehabilitation
whiteface r.
Wys's test
yellow-crowned
yenser