预抽真空泵

A : Hello Mrs Parker, how have you been? 帕克先生你好,最近好吗? B : Hello Dr Peters. Just fine thank you. Ricky and I are here for his vaccines. 你好,彼得医生。我很好,谢谢。我和里基在这里等注射疫苗。 A : Ve

发表于:2018-11-30 / 阅读(151) / 评论(0) 分类 纯正地道美语

今天要学的一个词是:pump。pump,Pump一般是指泵,或抽水机。可是今天讲的pump是指汽车加油站的泵。英国石油公司宣布停止在阿拉斯加的石油开采,《洛杉矶时报》的标题说:Oilfield Closure t

发表于:2018-12-04 / 阅读(172) / 评论(0) 分类 英语每日一词

She inspected the carpet for small items. She saw a paper clip and a rubber band. She picked them up. She put them into a little box on the kitchen counter. She plugged in the vacuum cleaner. She turned on the switch. The cat ran out of the room. She

发表于:2018-12-07 / 阅读(141) / 评论(0) 分类 原版英语小短文

Oliver went to Target to buy a new vacuum cleaner. The vacuum cleaners at Target cost $60 to $500. The expensive ones were too bulky and, of course, too expensive. He bought the cheapest one in the store: a Dirt Devil Vibe. Its label claimed that it

发表于:2018-12-11 / 阅读(154) / 评论(0) 分类 365个英语简短小故事

20-Kilometer Inflatable Tower Could Make Space Launches Cheaper 加拿大设计20公里长可充气通天塔使太空发射成本更低 Launching space vehicles is still very costly because booster rockets are not reusable. A space elevator could mak

发表于:2018-12-16 / 阅读(108) / 评论(0) 分类 VOA标准英语2015年(九月)

This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one

发表于:2018-12-24 / 阅读(150) / 评论(0) 分类 Scientific American(五)月

04Making a Restaurant Reservation GLOSSARY reservation a request that a table, seat, or room be available for ones use at afuture time* Have you made hotel reservations yet for your trip to San Diego? How many will be in the party? How many people wi

发表于:2018-12-26 / 阅读(157) / 评论(0) 分类 2007年ESL之餐饮娱乐

But it was... what happened was the ...understanding of how to move these things forward, and how to create these new products, somehow evaporated, 他们不懂如何利用新技术,不懂如何创造新产品 and I think a lot of good people stuck

发表于:2018-12-27 / 阅读(159) / 评论(0) 分类 名人传记

New Zealand will change the law to make it compulsory for children up to the age of 7 to sit in a booster seat in a car. At the moment, the law says it is compulsory for children up to the age of 5. Doctors at Starship hospital, which is the Auckland

发表于:2018-12-31 / 阅读(135) / 评论(0) 分类 新西兰英语

1. Police in Ferguson Missouri continued their investigation into the ambushed two police officers earlier Tuesday. The officers wearing police lines outside the Ferguson police apartment were demonstrated together. Both officers were being treated f

发表于:2019-01-11 / 阅读(166) / 评论(0) 分类 美联社新闻一分钟2015(三)月

NASA Successfully Tests New Rocket Engine NASA最强火箭测试成功 火星之旅指日可待 The American space agency successfully tested a powerful new rocket engine this week in the desert of northern Utah. The rocket booster is meant to take a

发表于:2019-01-12 / 阅读(257) / 评论(0) 分类 2016年VOA慢速英语(七)月

SpaceX Celebrates Historic Rocket Launch, Landing 创造历史!SpaceX火箭发射回收成功 And the safe landing is a big deal. It means that space travel could become a lot easier in the future. Normally rockets deliver their payload a satellite,

发表于:2019-01-12 / 阅读(119) / 评论(0) 分类 2015年VOA慢速英语(十二)月

The World Health Organization says heart disease kills about 17 million people every year and that it will become the leading cause of death in developing countries. But now, there is some hope. A new device is being marketed that could save countles

发表于:2019-01-13 / 阅读(165) / 评论(0) 分类 VOA标准英语2010年(一月)

He was going to ride his bike down to South Ferry. He squeezed the tires. They were soft. They needed air. I should buy a pump one of these days, he thought. He rode his bike to K-Mart on 34th Street. He walked the bike inside the store. He went to t

发表于:2019-01-22 / 阅读(172) / 评论(0) 分类 英文短篇故事(纽约)

今天要学的一个词是:pump。pump,Pump一般是指泵,或抽水机。可是今天讲的pump是指汽车加油站的泵。英国石油公司宣布停止在阿拉斯加的石油开采,《洛杉矶时报》的标题说:Oilfield Closure t

发表于:2019-02-02 / 阅读(187) / 评论(0) 分类 英语单词荟萃

The blue bike was sitting in Owens living room. It had no kickstand, so he had wedged the front tire in between two bookshelves so that the bike would stand upright. Both tires were flat. Dust covered the bike. However, no household spiders had set u

发表于:2019-02-03 / 阅读(219) / 评论(0) 分类 365个英语简短小故事

SpaceX announced a successful satellite launch on Sunday but failed an attempted sea-landing of a rocket booster, missing a goal that has repeatedly eluded the grasp of the Los Angeles-based rocket company. 总部位于旧金山的火箭公司SpaceX上

发表于:2019-02-03 / 阅读(130) / 评论(0) 分类 英语新闻

CAPE CANAVERAL Two American astronauts will venture outside the International Space Station Monday to stow a failed coolant pump and extend the outpost's Canadian railway. Wearing protective spacesuits in a deadly vacuum(真空) environment, Stephen

发表于:2019-02-05 / 阅读(189) / 评论(0) 分类 英语新闻

今天要学的一个词是:pump。pump,Pump一般是指泵,或抽水机。可是今天讲的pump是指汽车加油站的泵。英国石油公司宣布停止在阿拉斯加的石油开采,《洛杉矶时报》的标题说:Oilfield Closure t

发表于:2019-02-16 / 阅读(181) / 评论(0) 分类 学个词

Hostess: Thank you for calling Sakia Restaurant. How may I help you? Randy: Id like to make a reservation. Hostess: For which day and for what time? Randy: Its for Friday, the 24th, at 7 oclock. Hostess: How many will be in the party? Randy: There wi

发表于:2019-02-18 / 阅读(131) / 评论(0) 分类 地道美语播客
学英语单词
absolute compliance
aeronautical engineering
anelectrode
Anse Royal
archtek
bowiest
bundle of outputs
capacitance probe
cart-driver
cdc.gov
celibatarian
Chambri L.
checkweighing
cloze procedures
Cold Potato
conceptual ordering
convergence with probability one
cycloidical
dental amalgam
duke out
dynamic procedure
electric noise
external fund
eye-shade
F0L system
faint yellow
fifty years
fish-fillet
flanged cup bearing
flanking window
flat hairspring
fraction numeral
fractional magnetization
gayboy
Geneva Bible
genus aplodontias
genus mononychuss
golf-courser
haurangi mts. (aorangi ra.)
Hooker HRS 16
hot-cathode gas-filled tube
hullock
in my day
in some respects
indirectly connected interrupt level
intra-regional transportation
irregular heir
Japan poplar
lancet-shaped
light water displacement
machinesewed
Magbosi
Manganbrucite
Maritime Industry Law
methodological collectivism
methylator
mud minnows
nationwide paging network
natrium carbonicum monohydratum
neurotrophic
new tuberculin
nicolar
noise cover
notching time relay
number-theoretic technique
of principle
of Venus line
oilps
opv
ORcircuit
over-charged
passive branching
poblanos
polyvinylyrrolidone
progress sketch
pythonic
rasping file
rectilinear travel
reduced sampling inspection
remote system connect time
run a tape over
safety-lamps
siege of Vicksburg
single pool
skyllamycins
somaesthetic area
sovereignties
spinning stability
straithandedness
stump up
summity
tectono-stratigraphical division
tertiarism d'emblee
tetranicotinoylfructose
totear
us national security
vague mathematics
veal parmesan
Watteau bodice
well-entrenched
well-presented
yugoslavias