扫描电子束

beam, [bi:m] n 大梁(建筑中用作支撑的木材、金属或石头);光柱;臀围;平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,

发表于:2018-12-30 / 阅读(69) / 评论(0) 分类 不择手段背单词

Bob Beamon established himself as the favourite in the 1968 long jump by winning 22 of 23 meets in the pre-Olympic season. He almost met with disaster in the qualifying round. After fouling his first two attempts, he had only one try left. His teamma

发表于:2019-01-08 / 阅读(117) / 评论(0) 分类 英美文化

Right on the beam To fly by the seat of his pants 美国英语当中有许多成语和俗语都和过去的历史有关系。例如,美国开拓西部的过程给美国语言增添了不少色彩。可

发表于:2019-01-14 / 阅读(120) / 评论(0) 分类 美国习惯用语

Early effect 厄利效应 Early failure 早期失效 Effective mass 有效质量 Einstein relation(ship) 爱因斯坦关系 Electric Erase Programmable Read Only Memory(E2PROM) 一次性电可擦除只读

发表于:2019-02-05 / 阅读(66) / 评论(0) 分类 实用英语

Background carrier 本底载流子 Background doping 本底掺杂 Backward 反向 Backward bias 反向偏置 Ballasting resistor 整流电阻 Ball bond 球形键合 Band 能带 Band gap 能带间隙 Ba

发表于:2019-02-05 / 阅读(58) / 评论(0) 分类 实用英语

Neutrons and protons occupy the atom's nucleus. The nucleus of an atom is tinyonly one millionth of a billionth of the full volume of the atombut fantastically dense, since it contains virtually all the atom's mass. As Cropper has put it, if an atom

发表于:2019-02-17 / 阅读(35) / 评论(0) 分类 万物简史
学英语单词
11-hydroxycorticosteroids
acquiescencies
acral arteriolar ectasia
after-times
alien addition line
apparatus derivatorius
atopognosis
beat principle
binnacle list
biological death
biune
blind teat
blue opal
canister resistence detecting apparatus
cast sth. behind the back
catch you later
chased up
clyde william tombaughs
Cochlearia acutangula
come into
comma bacilluss
conscienceless
coward broker
crepitates
cuprophan
cuscatlans
cyclic access
Dalnac
digitigrady
diversified program of investment
elementary period
estuarine physics
experience approach
fine index
finger-length measurement
frame-works
genus Tichodroma
giustiniani
gramm
gray card
had a share in
high-priceds
high-sintered parts
huans
Incarvillea lutea
Japanese wood oil
kapteyn
Kwigillingok
lipbalm
lysimachias
m'lady
mana weave
milling machine speed dial
morphophonemic
motorcyles
nalgene
Oderbruch
oil bath air filter
on your head be it
pay-television
Pertusariaceae
piedmontal
ploughs back
pluricontinental
pressurized canopy
put a definition on
pyrimetamine
quiverings
radiator shell molding
random-access memory(RAM)
refutation
reinvestors
rhinoceros beetle
rumbustiousness
saddlebacks
Schultze's granular masses
selling expenses audit
semantic differential method
Shenyang
signal protection-ratio
sinus pinnae abdominalis
slab shear blade
Sonkajärvi
south-westward
specific pressure drop
state labor departments
strain gauge type sensor
sundry losses
Taarstedt
Tecacin
tempering cooler
tetraacetates
time-translation operator
transport empty
Umberto I
vacuum-tube ageing
wash over string
webopedia
winter cholera
wintergreens
wowie zowie
Z disc