设备不确定性

42.Coal-fired power plants The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily available fuel with which to generate large amounts of electric power. Coal seemed to fit the bill, and it fuel

发表于:2018-11-28 / 阅读(305) / 评论(0) 分类 新概念优美背诵短文50篇

[ti:UNIT 2 Plant a Plant! Lesson 12: Pretty Little Plant] [0:00.241]UNIT 2 第二单元 [0:01.877]Plant a Plant! 培育植物 [0:03.754]Lesson 12: 第12课: [0:05.391]Pretty Little Plant 漂亮的小植物 [0:08.856]You need two groups to sing this

发表于:2018-12-13 / 阅读(156) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

[ti:UNIT 2 Plant a Plant! Lesson 10: Plant Parts] [0:00.363]UNIT 2 第二单元 [0:02.105]Plant a Plant! 培育植物 [0:03.775]Lesson 10: 第10课: [0:05.444]Plant Parts 植物的组成部分 [0:07.100]THINK ABOUT IT! 想一想 [0:08.539]How many

发表于:2018-12-13 / 阅读(172) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

[ti:UNIT 2 Plant a Plant! Lesson 13: Why Are Plants Important?] [0:00.680]UNIT 2 第二单元 [0:02.359]Plant a Plant! 培育植物 [0:04.357]Lesson 13: 第13课: [0:06.716]Why Are Plants Important? 为什么植物很重要? [0:09.689]THINK ABOUT

发表于:2018-12-13 / 阅读(155) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

[ti:UNIT 2 Plant a Plant! Lesson 14: People and Plants] [0:00.244]UNIT 2 第二单元 [0:01.985]Plant a Plant! 培育植物 [0:03.795]Lesson 14: 第14课: [0:06.092]People and Plants 人和植物 [0:08.334]THINK ABOUT IT! 想一想 [0:09.663]Which

发表于:2018-12-13 / 阅读(167) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

[ti:UNIT 2 Plant a Plant! Lesson 9: How Does a Plant Grow?] [0:00.532]UNIT 2 第二单元 [0:01.935]Lessons 9~16 第9~16课 [0:04.780]Plant a Plant! 培育植物! [0:06.829]You Will Learn 你将学到 [0:09.105]Functions 实际应用 [0:10.888]Ta

发表于:2018-12-13 / 阅读(203) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

[ti:UNIT 2 Plant a Plant! Lesson 15: Danny Grows Grain!] [0:00.293]UNIT 2 第二单元 [0:01.961]Plant a Plant! 培育植物 [0:03.672]Lesson 15: 第15课: [0:05.842]Danny Grows Grain! 丹尼种粮食! [0:08.637]Date: 日期: [0:09.639]March 28

发表于:2018-12-13 / 阅读(152) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

[ti:UNIT 2 Plant a Plant! Lesson 11: Look after Your Plant!] [0:00.243]UNIT 2 第二单元 [0:02.058]Plant a Plant! 培育植物 [0:03.833]Lesson 11: 第11课: [0:05.326]Look after Your Plant! 照顾你的植物! [0:08.070]Has your seed sprouted?

发表于:2018-12-13 / 阅读(191) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily available fuel with which to generate large amounts of electric power. Coal seemed to fit

发表于:2018-12-15 / 阅读(184) / 评论(0) 分类 新东方背诵文选

Plant Signals 植物的语言 Can plants smell and taste in the same way that animals do? Can they talk to each other and to insects? Learn how scientists hope to unravel some of the mysteries of plant senses -- on today's Earth and Sky. JB: This is Eart

发表于:2019-01-02 / 阅读(193) / 评论(0) 分类 (科普英语)Earth and Sky

By Brian Padden Irbil, Iraq 27 September 2007 Recent outbreaks of cholera in parts of Iraq highlight the need for basic services like clean water.Development projects in much of the country have been delayed because of the deteriorating security situ

发表于:2019-01-07 / 阅读(136) / 评论(0) 分类 2007年VOA标准英语(九月)

HOUSTON, Jan. 8 (Xinhua) -- Fire broke out at a nuclear power plant Tuesday in the U.S. state of Texas, forcing one of two units to be shut down, U.S. media reported. No injuries were reported in the fire, which erupted in the Unit 2 main transformer

发表于:2019-01-07 / 阅读(123) / 评论(0) 分类 英语新闻

By Peter Heinlein Shimelba Refugee Camp, Northern Ethiopia 31 October 2007 Rising tensions between Ethiopia and Eritrea have led to an increasing flow of refugees across their common frontier. A border war between the Horn of Africa neighbors from 19

发表于:2019-01-09 / 阅读(94) / 评论(0) 分类 2007年VOA常速英语(十月)

[ti:UNIT 2 Plant a Plant! Lesson 16: Unit Review] [0:00.193]UNIT 2 [0:01.853]Plant a Plant! [0:03.512]Lesson 16: [0:05.287]Unit Review [0:06.831]Ⅰ. Building Your Vocabulary [0:10.111]A. Fill in each blank with the proper word from the list. Use the

发表于:2019-01-09 / 阅读(265) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

By Scott Bobb Johannesburg 20 December 2007 Zimbabwe ended 2007 with uncertainty looming over national elections scheduled for next year. Negotiations aimed at holding a free and fair vote had made progress, but remained deadlocked over key points. S

发表于:2019-01-20 / 阅读(79) / 评论(0) 分类 VOA常速英语2007年(十二月)

By Peta Thornycroft Harare 18 February 2008 There is growing uncertainty in Zimbabwe as politicians and analysts realize that President Robert Mugabe is likely to face a run off after the March 29 elections. For VOA, Peta Thornycroft in Harare report

发表于:2019-01-20 / 阅读(156) / 评论(0) 分类 VOA常速英语2008年(二月)

By Peter Fedynsky Moscow 20 December 2007 The director of the Russian company building Iran's nuclear power station at Bushehr says the facility will not begin operations before the end of 2008. VOA Correspondent Peter Fedynsky reports from Moscow. T

发表于:2019-01-31 / 阅读(94) / 评论(0) 分类 VOA常速英语2007年(十二月)

Government officials in Japan say it could take months for radiation(放射辐射) leaks to be brought under control at the Fukushima Daiichi nuclear power plant. The Fukushima Daiichi plant continues to spew radioactive water into the Pacific Ocean

发表于:2019-02-08 / 阅读(102) / 评论(0) 分类 英语新闻

Jack and the Bean Plant I Once there was a poor woman. She had one son, whose name was Jack. Jack had no father; a giant had killed him. Jack's mother had one cow, whose milk they sold. They had no money but the money which they got for the milk. One

发表于:2019-02-09 / 阅读(143) / 评论(0) 分类 趣味英语

Photo: AP This file photo shows a technician walking along the perimeter of a nuclear reactor head at the Ignalina nuclear power plant in Visaginas, Lithuania, 15 Dec 2009 Lithuania's Soviet-built nuclear power plant was shut down late Thursday as pa

发表于:2019-02-12 / 阅读(78) / 评论(0) 分类 VOA标准英语2010年(一月)
学英语单词
abkultur
accidental torque
air-cleaning facility
allantoic
aluminum gate and sillicon gate differences
antidepressants
Aporosa
armigeres (leicesteria) flavus
bearinghousing
bond debts
borovoes
Brittas B.
brocialism
cascan
chain story
cheap and nasty
Chenopodium gracilispicum
chopt
coal firing boiler
coating hood
copper-nickel
corrugant
corrugated finned tube exchanger
detractours
dot-pattern generator
double ureter
dratio
effective grounded
effective inflow
eucommea rubber
false lupine
felis temminckii
fibre bundles
flocculated colloid
Gates of Paradise
gelatine dynamite
genus spheniscuss
Gibbs function criterion
glands of Leydig
glanz
grain products
Granuloreticulosea
hesitations
hinge tooth
hyperacoustic zone
hyperpower
i'll see you
infinite conical horn
involuntary group
kain
lament over
laundry and hot shower tank
liquid clutch
liquid fluorocarbon
load coil
loss carry back carry forward credits
ma and pa
maximum toggle speed
microbiophagy
mixed chart type
mobbs
multiple film
never top 40 (juke box)
non-productive branch
over-full
PAF (price adjustment formula)
paraduodenal fossae
Pecten analis
pesticide
pointer array
predictors of technology
producibility index log
quiet as a mouse
R.C. (reinforced concrete)
radio interference filter
rectifying junction
Rickord's chancre
rosulated leaf
s.m.p.
salvene
santa rosa i.
sapo domesticus
Sclavo's serum
self-latching relay
self-shifting synchronizing clutch
Seventh-Day, seventh-day
shapur
space station equipment
stop work request
stopcock
stypses
supershifted
temperature increase
the topic of the day
to blaze
tpm (total productive maintenance)
travelling-wave aerial
uridylated
vermilion cinnabar
waymentation
wind gaw