The new cell phones are hand-held telephone devices with built-in antennas.新手机是手提电话装置内置式天线. They are often called wireless, mobile, or PCS phones. I've seen some that were even built into a wristwatch. 他们通常被称为无线、移动或电脑电话.我看到有的人甚至认为建成手表.
For those of you that are old enough...对于年长::你说 well it looks like we've caught up with Dick Tracy.看来,我们双方也赶上了Tracy迪克.
For those persons who are frequently on the go, cell phones are great, and they are very popular with other types of callers too, especially since they can be carried easily from place to place.对于那些经常在去,手机也很大,而且也很受欢迎,与其他类型的人也特别是由于它们可以轻易地从各个地方.
You don't have to worry about finding a pay phone, or asking to你不用担心找公用电话,或是要求
use someone's phone to check in or get directions, or whatever.用别人的电话或查得到指示,或什么的.
When you get down to the basics, cell phones are just two-way radios.当你认真地看懂,只是手机双向无线电. When you talk into a wireless telephone, it picks up your voice and converts the sound to radio frequency energy or radio waves.当你谈成无线电话、你拿起它的声音和射频能量转换为声或无线电波. The radio waves then travel through the air until they reach a receiver at a nearby base station.然后通过无线电波空中旅行,直到他们到达基站接收机在附近. From here, it is the base station that sends your call through the telephone network until it reaches the person you are calling. 从这里,它是你的电话基站,通过电话网传送直至到达你的人通话.
All very simple. The main difference between the cell phone and the radio is that the cell phone sends to a specific station, (telephone center), that then reads who you dialed and sends it back out to that persons' receiver.一切很简单.主要区别在于手机和无线手机发出一个特定站(电话中心),然后拨打你看,派谁出来,这回者接收机.
Health Concerns over Cell Phones手机关注健康
Yes there has been some recent issue about cell phones and a perceived health hazards.最近有一些问题是关于手机和知觉健康.
As stated earlier, cell phones are radios.如前所述,手机收音机. However, to be more accurate, cell phones are low-power, single-channel, two-way radio devices.不过,为了更准确、手机低功耗、单一频道、双向无线电装置.
When you talk on your cell phone, as stated earlier you are actually talking to a nearby base station.当你谈谈你的手机,如前所述,其实跟你就近基站.
Cell phone base stations are low-power, multi-channel, two-way radios.手机基站是低功率、多频道、双向无线电. Their function is to send your phone call into the regular land-line phone system so you can start talking with the person you are calling. Or out over the air to another persons cell phone.其功能是把您经常打电话到地在线电话系统可以让你的人开始跟你通话.进出上空手机给另一人.
Now, since cell phones and their base stations are two-way radios, they produce radio-frequency (RF) energy which is what they use for communication.现在,由于手机及基站都是双向收音机他们制造的无线电频率(RF)能量是他们用作沟通.
The people who are near them are of course exposed to the RF energy.身边的人,当然是暴露在射频能量. However, because both the cell phones and the base stations are very low power, meaning they only exhibit short range energies, the RF energy exposure levels from them are generally considered to be very low.不过,因为无论是基站和手机功率很低,这些展品含义只有短程能源射频能量暴露程度从他们通常被认为是非常低的.
The scientific community both here in the United States and internationally agree that the power from these cell phones and the base station antennas is far too low to produce health hazards. And as long as people keep away from direct access to the antennas, (the base stations), they are generally considered to be safe from any perceived health risks.科学界都在这里,美国和国际上同意权从这些手机和基站天线太低出示健康.只要人们远离直达天线、(基站),他们通常被认为是安全健康的任何风险知觉.
Cell Phones – Buying and Savings Tips手机购买和储蓄小费
Cell phones are the “in” things nowadays and it’s hard to find anyone without one. Hey I drive down the road, and I see what must be at least 80 % of the other drivers with one of the new cell phones up to their ear. 手机的"新"事物,如今恐怕很难找到没有任何一个.嘿,我压低道我看什么必须至少有80%的其他司机一个新手机最多的耳朵.
However, even though cell phone's are now considered an absolute must, there’s no reason for you to pay much for a gadget that you may or may not use that much. Need a good source to check out Cell Phones , try Amazon, they have some great deals ..不过,即使手机的绝对正考虑要没有任何理由为你付出多少玩意儿你可以或不可以使用得多.要有一个好的消息看看手机,亚马逊尝试,他们大部份交易..
So, if you don’t use cell phones very often, select a low usage service plan for your mobile.因此,如果你不使用手机往往选择低使用率你们移动服务计划. Many areas offer cell phones for as low as $19.99.许多地区开办手机低至$19.99. This allows you the convenience of mobile phones but without making too much of a dent on your wallet.让你方便,但移动电话太多而不纠你的钱包.
Another excellent tactic to save on your cell phones is to only get features you need.另一个出色战术挽救你的手机是唯一得到你需要的特点. Call your wireless provider to cancel extra features if you are not using them.请您无线提供商取消额外特点如果你不是使用. This will allow you to save some on your cell phone service plan.这使你对你的手机节省一些服务计划.
Cell phones are great, now-a-days you can take pictures, watch movies, send text messages, and a hundred other uses. So find a plan that will work for you. Something that will give you everything you need, as well as most of what you want. 手机大,现在一天你可以拍照,看电影、发短信、而百其他用途.工作计划,以便找到你.这会给你你需要的一切,以及大部分你想要什么.