首页
登录
职称英语
NASA had planed to launch its space shuttle ______ in September. [originaltext]
NASA had planed to launch its space shuttle ______ in September. [originaltext]
游客
2023-11-20
55
管理
问题
NASA had planed to launch its space shuttle ______ in September.
NASA says it will not send another shuttle this year to the International Space Station (ISS). It had hoped to launch Atlantis in September, but put that mission off last week until November. Now, the further flight delay will give technicians even more time to understand why a piece of hard insulation foam broke away from the external fuel tank during Discovery’s July launch and to fix the problem.
It was such a chunk of foam that doomed Columbia and its seven-member crew by puncturing its wing during liftoff. NASA spent two-and-a half-years and millions of dollars to prevent another occurrence, and the July incident forced the agency to ground the shuttle fleet again until it could resolve the issue once and for all.
As a result, NASA will return three external fuel tanks to the manufacturer for analysis and redesign. Agency human space flight chief William Gerstenmeier says this means a shuttle cannot lift off before March, but emphasizes that March is only a planning target.
"We shouldn’t be thinking of the launch date as March. We put a planning target out there and now we’re going to do a detailed engineering assessment and analysis and start seeing if that makes sense. Then when a couple weeks have gone by and we’ve got enough intelligence together, then we can pick a launch date."
On Wednesday, NASA was accused of rushing Discovery to launch in July, skipping safety improvements that led to the repeat foam shedding. The accusation came from seven members of a much larger group of experts who had overseen NASA’s shuttle safety modifications after the Columbia tragedy.
选项
A、Discover
B、Atlanta
C、Columbia
D、Atlantis
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3204777.html
相关试题推荐
Howmanyattacksandclasheswerereportedinthisnews?[originaltext]Atta
Accordingtothecourtruling,Israelhasto[br][originaltext]TheInterna
Accordingtothecourtruling,Israelhasto[originaltext]TheInternational
Wheredoesthisconversationmostlikelytakeplace?[br][originaltext]M:Hell
[originaltext]LetChildrenLearntoJudgeTheirOwn
______werereportedbytheweatherstationinChicago.[br][originaltext]
______werereportedbytheweatherstationinChicago.[br][originaltext]
Howmanycarsaretowedfromthestreetseachyear?[br][originaltext]One
Howmanycarsaretowedfromthestreetseachyear?[originaltext]Oneofth
Whatisdiscussedasanewpartofthemedicalfacilities?[br][originaltext]
随机试题
[originaltext]M:AretravelingfacilitiesgoodintherestofBritain?W:Well,
负责躯体运动的中枢主要位于A.中央前回 B.中央后回 C.颞上回 D.额下
()是银行承兑汇票的特征。A.当银行发送装货单给银行客户并且银行接受货物时立
以不正当手段取得医师执业证书,由发给证书的卫生行政部门给予的行政处罚是指(
下列选项,不属于椿皮功效的是A.清热燥湿B.收敛止带C.止血止泻D.固精缩尿E.
下列头孢菌素中具有抗铜绿假单胞菌作用的是A:头孢氨苄 B:头孢唑林 C:头孢
能够从上述材料中推出的是:A.2021年全国普通高校毕业生人数超过201
政府对基本商品征收的一种税是对出售的每一罐食用油征税两分钱。税务纪录显示,尽管人
Onepossiblebenefitoftheexperimentd
某商品住宅开发项目的楼面地价为500元/㎡,建筑安装工程费为2500元/㎡,各项
最新回复
(
0
)