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
a bee mite
a fat lip
adaptive man-machine nonarithmetic information processing
anticold
arianist
artificial intraocular lens
auditory information
authentic surveyer
axle tilt
big-bath accounting
bond investment account
book
Bourget, Aéroport de Le
broad ocean
burst into laughter
cespi
chilidium
cochain complexes
Codeinism
Condong-kecil, Sungai
consummations
contemporaneities
corps
cuntwardly
database key
deckle frame
deducible
dirty weekend
domestic storage financing
Ebringen
electrooptic(al) modulator
emission vacuum spectrometer
Epipactis mairei
erythroblastotic
estate at sufferance
esthesioneure
evidence-based-practice
fission yield characteristic
flitted
furanilide
generally accepted accounting practice
Gestalgar
gingival curvature
great grey owls
ground duty
guilts
hacking into
hatch boat
hazelgrove
Hsp72
iconizing
involument
isotrihydroxycholine
jig concentrate
jury instructions
keen price
Kocher's symptom
koco
ligialty
Londonderry District
lowfield
maintenance free operation
Messinese
mixed coal
monometer
N-noramepavine
objicient
offensive play
oilway
onioned
osmeterium
palloid gear
Phenethiurn
phosphate absorption coefficient
piano player
picture reproducer
preliminary interview
psychrometres
retriangulated
right-and-left-hand chart
rotary broom-slat sweeper
rotating dipole method
row-by-row system
savoy alps
saxhorn contrebasse
Shihan
simultaneous variables
sixth
squaring up machine
stepped diameter auger
stoneware clay
technical magnetization
train control line
trigeminal cough
trimonthlies
ulti
vietti
vSphere Replication
Vǔlchidol
well-given
yarn reinforced elastomer
zygosporangium