大师作文网英语翻译American scientists have developed a new kind of glass w
来源：学生作业帮 编辑：大师作文网作业帮 分类：综合作业 时间：2024/11/12 22:03:12
英语翻译
American scientists have developed a new kind of glass wire that can carry telephone messages for long distances.The new fluoride glass wire,or optical fibre,is a major improvement over the optical fibres now used in many modern communications systems.
Present optical fibres are made from silica glass.They are not costly to produce,but the signals carried by these silica optical fibres weaken very quickly.A repeater device must be built every 50 kilometers to increase or amplify the signals strength.Such repeater devices are costly and they need electrical power.This creates special problems for optical fibre systems that cross oceans.Long copper wires are needed to carry electricity from shore to repeater is costly and takes much time.
The new fluoride optical fibre is only a little bigger around than a human hair,yet each could carry 10,000 telephone messages at one time for thousands of kilometers.Traditional copper telephone wires can carry only 4 messages.And unlike present silica optical fibres,the new fluoride glass wires could carry messages for thousands of kilometers with very few,if any,repeater devices.
The scientists developed the new optical fibres for systems that cross oceans,but they said there would also be many other uses for the fluoride glass wires.The new optical wires could be used for long-distance temperature sensing device.They could be used in some medical operation.
Scientists caution that the new fluoride optical fibre is still only experimental.Researchers have not yet been able to make long tiny wires from fluoride glass.
American scientists have developed a new kind of glass wire that can carry telephone messages for long distances.The new fluoride glass wire,or optical fibre,is a major improvement over the optical fibres now used in many modern communications systems.
Present optical fibres are made from silica glass.They are not costly to produce,but the signals carried by these silica optical fibres weaken very quickly.A repeater device must be built every 50 kilometers to increase or amplify the signals strength.Such repeater devices are costly and they need electrical power.This creates special problems for optical fibre systems that cross oceans.Long copper wires are needed to carry electricity from shore to repeater is costly and takes much time.
The new fluoride optical fibre is only a little bigger around than a human hair,yet each could carry 10,000 telephone messages at one time for thousands of kilometers.Traditional copper telephone wires can carry only 4 messages.And unlike present silica optical fibres,the new fluoride glass wires could carry messages for thousands of kilometers with very few,if any,repeater devices.
The scientists developed the new optical fibres for systems that cross oceans,but they said there would also be many other uses for the fluoride glass wires.The new optical wires could be used for long-distance temperature sensing device.They could be used in some medical operation.
Scientists caution that the new fluoride optical fibre is still only experimental.Researchers have not yet been able to make long tiny wires from fluoride glass.
美国的科学家们发现了一种可以用做传输长途电话的玻璃线.这种新的氟化玻璃线或者光导纤维是在普遍用于现代通讯设备中所使用的光学纤维的基础上的一项重大改革.
现在所使用的光纤是由二氧化硅玻璃制作的,造价低,但是信号很快减弱,必须每50公里就必须安装一个转发器装置,以增强或扩大信号强度.这样就提高了造价并且需要使用电力系统,而且这种光导纤维使用在海上就成了问题.同样铜丝电线需要用电从海岸传输到转发器,造价贵且时间长.
这种新的氟化光导纤维只比人的头发粗一点点,然而每一条这种纤维都可以在一千公里内同时传输10,000条电话讯息.过去使用的铜丝线只能传输4条信息,不像现在的光导纤维.使用这种新的光导纤维在几千公里之内之需要使用有限的几个转发器装置.
科学家们发现的这种新的光导纤维,不仅可以跨海使用,他们说这种氟化光导纤维还可以运用到其他方面.这种新的光导纤维可以用于远距离的温度敏感装置,还可以用做医疗手术.
科学家们警告说,这种新的光导纤维仍然在实验阶段,目前研究人员还没有研制出比它更细小的
电线.
现在所使用的光纤是由二氧化硅玻璃制作的,造价低,但是信号很快减弱,必须每50公里就必须安装一个转发器装置,以增强或扩大信号强度.这样就提高了造价并且需要使用电力系统,而且这种光导纤维使用在海上就成了问题.同样铜丝电线需要用电从海岸传输到转发器,造价贵且时间长.
这种新的氟化光导纤维只比人的头发粗一点点,然而每一条这种纤维都可以在一千公里内同时传输10,000条电话讯息.过去使用的铜丝线只能传输4条信息,不像现在的光导纤维.使用这种新的光导纤维在几千公里之内之需要使用有限的几个转发器装置.
科学家们发现的这种新的光导纤维,不仅可以跨海使用,他们说这种氟化光导纤维还可以运用到其他方面.这种新的光导纤维可以用于远距离的温度敏感装置,还可以用做医疗手术.
科学家们警告说,这种新的光导纤维仍然在实验阶段,目前研究人员还没有研制出比它更细小的
电线.
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