首页
登录
职称英语
Air turbulence can substantially accelerate the appearance of large dro
Air turbulence can substantially accelerate the appearance of large dro
游客
2024-01-11
9
管理
问题
Air turbulence can substantially accelerate the appearance of large droplets
triggering rain by presenting a new mechanism, the "sling effect", which
increases collisions of droplets that have become detached from the airflow.
Line First, vapor condensation in cloud cores produces small droplets resembling one
(5) another in size, which then expand to raindrop size by coalescing under the
effects of air turbulence—a force thought to cause collisions of similar-sized
droplets whose radii exceed a few micrometers. Then, turbulent vortices act as
small centrifuges that spin heavy droplets out, creating concentration
heterogeneities and jets of droplets, both of which increase the mean collision
(10) rate, which in turn accelerates rain initiation.
One can conclude that rain prediction requires a quantitative description of
droplet collision in turbulence, a mechanism which helps meteorologists to
forecast rainfall, but detailed understanding of the phenomenon entails
consideration of such factors as warm and cold fronts stretching over hundreds
(15) of miles, individual clouds perhaps a mile or so across, and even, as the
mechanism illustrates, tiny eddies perhaps a few centimeters or so in size. [br] The primary purpose of the passage is to
选项
A、explain and resolve a controversy among meteorologists
B、present and describe a recently discovered phenomenon
C、suggest and prove a theory on the cause of a phenomenon
D、describe and confirm research findings under question
E、discuss and evaluate the soundness of certain experimental observations
答案
B
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3352587.html
相关试题推荐
A、appreciationofthetheory’sabilitytoexplainthedisappearanceofcertainc
Airturbulencecansubstantiallyacceleratetheappearanceoflargedro
Scientistshave______foryearsthatturbulencewithinthegaseouscloudsfound
Ancientpeoplefeltmuch______concerningthenotionthattheappearanceofcomet
Airturbulencecansubstantiallyacceleratetheappearanceoflargedro
Airturbulencecansubstantiallyacceleratetheappearanceoflargedro
Airturbulencecansubstantiallyacceleratetheappearanceoflargedro
Becauseoftheirspare,whiteappearance,ancientGreekstatuesinmodernmuseum
ThedisappearanceofSteller’sseacowfromtheBeringandCopperislandsby
ThedisappearanceofSteller’sseacowfromtheBeringandCopperislandsby
随机试题
TheEmergingOnlineGiantsTheymaynothavethenamere
ShoppersonBlackFriday,thetraditionalstartoftheholidayshoppingseas
Theromanticarchetypeofthepoor,isolatedwriterlivingabroadwasperhaps
评价运输效益时遵循的总目标是()。A.企业利润最大 B.环境污染最小 C
关于CK-MB的叙述错误的是A.诊断AMI的性能优于AST B.可用于判断AM
为了避免各种偏倚影响临床试验结果,设立哪一种对照效果最佳()A.历史性对照
26岁初产妇,妊娠38周,临产5小时,LSA,突然破水,胎心110次/分,肛查不
2019年5月,全国12358价格监管平台受理价格举报、投诉、咨询共计37576
客户将委托的证券从原有证券账户划转至专用证券账户,或者专用证券账户注销时将专用证
划分货币层次的重要依据是货币的()。A.兑换性 B.还原性 C.流动性
最新回复
(
0
)