时间:2019-02-14 作者:英语课 分类:英闻天下


英语课

   U.S. safety regulators say they have a "long road ahead" in their investigation 1 into the lithium ion battery problems on Boeing's 787 Dreamliners.


 
  The head of the National Transportation Safety Board says they will file their interim 2 findings in 30 days.
 
  Deborah Hersman says investigators 3 have pinpointed 4 the origin of a battery fire on a 787 in Boston last month.
 
  However, investigators have not yet determined 5 the cause of the short circuit which led to the fire.
 
  Hersman says Boeing is going to have to review its use of this particular battery technology.
 
  "Boeing assessed that the likelihood of a smoke emission 6 event from a 787 battery would occur less than once in every 10 million flight hours. The 787 fleet has accumulated less than 100,000 flight hours, yet there have now been two battery events resulting in smoke less than two weeks apart on two different aircraft. This investigation has demonstrated that a short circuit in a single cell can propagate two adjacent cells and result in smoke and fire. The assumptions used to certify 7 the battery must be reconsidered."
 
  The 50 Dreamliners in service have been grounded since January 16th due to the battery failures.
 
  The Federal Aviation Administration has carried out a test flight of a 787 to see if any battery problems crop up.
 
  Boeing is reportedly trying to find ways to mitigate 8 and contain a fire if one starts in the batteries.
 
  None of the 787's on-order for Chinese airlines has yet to be delivered.

n.调查,调查研究
  • In an investigation,a new fact became known, which told against him.在调查中新发现了一件对他不利的事实。
  • He drew the conclusion by building on his own investigation.他根据自己的调查研究作出结论。
adj.暂时的,临时的;n.间歇,过渡期间
  • The government is taking interim measures to help those in immediate need.政府正在采取临时措施帮助那些有立即需要的人。
  • It may turn out to be an interim technology.这可能只是个过渡技术。
n.调查者,审查者( investigator的名词复数 )
  • This memo could be the smoking gun that investigators have been looking for. 这份备忘录可能是调查人员一直在寻找的证据。
  • The team consisted of six investigators and two secretaries. 这个团队由六个调查人员和两个秘书组成。 来自《简明英汉词典》
准确地找出或描述( pinpoint的过去式和过去分词 ); 为…准确定位
  • His refusal to help simply pinpointed his cowardice. 他拒绝帮助正显示他的胆小。
  • Computers pinpointed where the shells were coming from. 计算机确定了炮弹发射的位置。
adj.坚定的;有决心的
  • I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
  • He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。
n.发出物,散发物;发出,散发
  • Rigorous measures will be taken to reduce the total pollutant emission.采取严格有力措施,降低污染物排放总量。
  • Finally,the way to effectively control particulate emission is pointed out.最后,指出有效降低颗粒排放的方向。
vt.证明,证实;发证书(或执照)给
  • I can certify to his good character.我可以证明他品德好。
  • This swimming certificate is to certify that I can swim one hundred meters.这张游泳证是用以证明我可以游100米远。
vt.(使)减轻,(使)缓和
  • The government is trying to mitigate the effects of inflation.政府正试图缓和通货膨胀的影响。
  • Governments should endeavour to mitigate distress.政府应努力缓解贫困问题。
学英语单词
abnormal phoneme
aestuum
alternative carriage
anal operculum
antiarachnolysin
backstair
banana kicks
barenboim
be under review
BISCS
bow mechanism
bursae iliopectinea
Chladni
chromium tungstate
compound oil
concentrated evaporator
conical gauge
conpsoromic acid
convergence region
countryish
debit credit mechanism
delayed time-base sweep
disarmings
discredits
distinctiveness ratio
electropositive
erewhile (s)
extended field
filament blend yarn
Flumezin
foreappoint
forest goats
formation signal
frontal-contour chart
Gaius Julius Caesar
Galton's delta
gastrique
generalife
Gentianopsis holopetala
get ... on
gnathoscope
Guy's pill
Huschke's valves
hyperegy
integrated tug-barge
it feels like
kalioun
karagandas
Kievites
KING (Kinetic Intense Neutron Generator)
layman management
line control word
lobotess
lobularities
luci
magnesium carbonate
Makhāmīr, Jab.al
microwave dryer
mimoplocia notata
MIRAPINNIDAE
modern drama
nandrolone phenylpropionate
nonimplant
Olovyannaya
one quadrant convertor
optical parallelism
overhead
p-hydroxyphenylpyruvic acid
pendler
PHLA
placida dendritica
predicator
production engine
provisional acceptance
purophobia
requisite book
reverse-commutes
rule with an iron fist
Sikkim holly
siliceous geyserite
solid error
solid lubricant
solubility parameter
spermatozoon (pl. spermatozoa)
spray chemical
stationary tangent
Stenshuvud
subdivision rules
taxation theories and principles
the Demerara
thinkos
tidal zone biology
timber drying
tropical air mass
true income
undilating
US Coast Guard
Wii Sports
wolf jaw
xterra
yard craft