英语翻译Television is one of today’s most powerful and widesprea

英语翻译
Television is one of today’s most powerful and widespread means of mass communi
cation.It directly influences our lives on both a short-term and long-term basis;
it brings worldwide situations into our homes; it affords a lot of opportunities
for acquiring higher education ;and it performs these tasks in a convenient yet
effective manner.We are all aware of the popularly accepted applications of tel
evision ,particularly those relative to entertainment and news broadcasting.Tel
evision,however,has also been a vital link in unmanned deep space exploration
,in providing visions from risks areas (such as approach to radioactive materials or environments) in underwater research,in viewing storms moving across a big city
area (the camera being placed in a weather-protective enclosure near the top of a tower),etc.The earth’
s weather satellites also use television cameras for viewing cloud cover and mov
ements from 20,000 miles in space.Infrared filters(红外线滤色镜） are used for night views,an
d several systems include a spinningmirror arrangement to permit wide-area views
from the camera.Realizing the unlimited applications for today’s television,
one may thus logically ponder the true benefits of confining most of our video a
ctivities to the mass-entertainment field.
Traditional television broadcasting within the United States centres around fre
e enterprise ownership.This requires funding by commercial sponsors,
and thus functions in an income-producing business manner.Television in USSR-su
bjected(前苏联控制的） areas,conversely,is a governmemt-owned and government-maintained
arrangement.Whi
le such arrangements reject the need for commercial sponsorship,it also has t
he possibility of limiting the type of programs available to viewers.
A highly changed form of television called Slow-Scan TV is presently being used
by many Amateur Radio operators to provide direct visual communications with al
most any area of the world .This unique visual mode recently allowed people on t
he tiny South Pacific country of Pitcairn Island to view,for the first time in
their lives,distant areas and people of the world .The chief radio Amateur and
communications officer of Pitcairn,incidentally,is the legendary Tom Christia
n---great,great grandson of Tom Christian of “Mutiny on the Bounty”（《叛舰喋血案》）
fame.Radio
Amateurs in many lands worked together for several months establishing visual c
apabilities for Pitcairners.The results have proven satisfactory,yet the visual
capabilities have only been used for health education,or welfare purposes.Com
mercial TV is still unknown to natives of that tiny country.Many other forms of television and visual communication have also been used
on a semi-restricted basis.This indicates the many unused areas of video and
television may soon be developed on a more widespread basis.

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完毕.译文：
电视是当下最有力,传播最广的大众传播方式之一.它既能短期,也能长期直接影响我们的生活；它将世界形式带给足不出户的我们；它提供大量接受高等教育的机会；而且它实现这些的方法既简便又行之有效.我们都知道电视的一般性普及应用,尤其是与娱乐和新闻播报相关的部分.然而,在无人深空探索,水下研究中提供危险区域的影像（比如接近放射性材料或环境）,观察风暴经过大型城市区域（摄像机被安装在接近塔顶的防风雨护栏中）等等活动中,电视都成为重要的一环.地球气象卫星也使用电视摄像机,从20,000英里之外的太空观察云量和云层移动.红外滤镜用于夜间观察,旋转反射镜组等几个系统则实现了相机的大范围视野.如果一个人意识到目前电视无限的应用,他也许会认真推理思考一下,将大部分电视活动限制在娱乐领域事实上带来了多少好处.
传统的美国国内电视广播所有权集中在企业手里.这需要赞助商来投入资金,因而以创造收益的形式发挥其功能.而相比之下,苏联控制地区的电视则是国有,国营的.一方面,这样的安排不需要商业赞助,但也有可能使提供给观众的节目种类受限.
有一种高度变化的电视形式叫做慢扫描电视,目前被许多业余无线电操作者使用,可以提供与全球几乎任何地区的直接可视通信.这种独特的视频模式最近让南太平洋皮特克恩小岛上的人看到了遥远地域和其他同胞,这是他们有生以来的头一次.顺便一提,皮特克恩的首席无线电爱好者,岛上的通信官,是那个传奇的汤姆·克里斯汀——“叛舰喋血案”轶闻中的汤姆·克里斯汀的曾、曾孙.各地的无线电爱好者们通力合作了几个月,与皮特克恩的人们建立了视频连接.事实证明,结果让人满意,但视频通讯能力仅被用于卫生教育,或是福利事业的目的.商业电视仍然不为这个小国家的人们所知.许多其他形式的电视和视频通信也在半受限的基础上使用.这也预示着许多未开发的电视和视频领域也许会得到广泛应用.