noise floor 中文意思是什麼

noise floor 解釋
固有噪聲電平
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  • floor : n 1 地板，地面。2 （樓房的）層。3 （船底的）肋板。4 （海洋、山洞等的）底。5 議員席；經紀人席。6 ...
  1. Rustling about the room, his softly - slippered feet making no noise on the floor, he moved like a refined tiger - looked like some enchanted marquis of the impenitently wicked sort, in story, whose periodical change into tiger form was either just going off, or just coming on

    他那穿著軟拖鞋的腳悄然地踩著地面，像只儀態優雅的猛虎儼然是故事里怙惡不悛的侯爵中了魔法要定時變化，或是剛從老虎變成了人，或是馬上就要變成老虎。
  2. Just as we do not complain the upper floor makes noise, although our below floor complaint us for the foot noise, that we could not control

    就好比我們不應該抱怨樓上的地板所產生的噪音，雖然我家樓下的住戶常常向我反應腳步聲太吵影響他們，但我們也是莫可奈何。
  3. The saint porch company during the development development home use product, ( the home use product includes ; the down - flow pipe sound insulation, the soundproofing suspended ceiling, the soundproofing wall, the soundproofing floor, the sound - insulated gate, the window and so on ), meanwhile displays the acoustics decoration specialized special skill, meets each acoustics question for the project in, provides the specialized design, the specialized construction, specially aims at the theater, multi - purpose hall, singsong house, pronunciation faculty working office, conference room, recording awning, restaurant, hotel and so on, but also has the equipment level ( between equipment ) the noise quite big place, carries on the specialized design, the construction and the transformation, and achieves the ideal effect

    聖軒公司在開發研製家用產品同時， （家用產品包括；下水管隔聲，隔聲吊頂，隔聲墻體，隔聲地板，隔聲門，窗等） ，同時還發揮聲學裝飾專業特長，為工程中所遇到的各種聲學問題，提供專業設計，專業施工，特別是針對影劇院，多功能廳，歌廳，語音教研室，會議室，錄音棚，酒樓，飯店等，還有設備層（間）噪音比較大的場所，進行專業設計，施工及改造，並且達到理想的效果。
  4. Under rayleigh fading channel, we also simulated and compared ber in siso 、 simo and mimo systems. secondly, based on careful study the ber and the channel capacity under white noise channel under mpsk modulation when the channel is rayleigh fading, we duduced the expressions of stbc ’ s ber and channel capacity under rice and nakagami fading. and also analysed the performances through numerical simulation using matlab to testify the exactitude of the dudeced expressions. finally, there exists an error floor of stbc through studying on its performance on time - selectiv fading channel. we analysed the reason and proposed two new decode combination scheme to eliminated the error floor and the performance of stbc on time - selective fading channel is improved. and also compared the two scheme ’ s complication and snr gain

    這些結果大部分是閉式結果，能比較準確地衡量空時塊碼的性能，並對不同衰落的性能做了相互比較，其結果對空時塊碼的實際應用具有一定的指導意義。實際的通道是時變的，分析了空時塊碼在時間選擇性衰落通道中產生誤差地板效應的主要原因是存在碼間干擾（ isi ） ，在此基礎上提出了兩種能消除誤差地板效應的譯碼合併方案，並對這兩種方案的復雜度和信噪比增益進行了比較。
  5. Over the years, lrt technology has been upgraded to counter the negative effects of traffic jams, noise, environmental damage, air pollution, etc. featuring a small radius of curvature, multiple car units, modulated train set, enlarged cars both in transverse and longitudinal directions, low car floors, streamlined car design, advanced control systems, and flexible right of way, modern lrt systems have been successfully adopted to most environmental and social needs. they adequately display their merits as transportation systems ; i. e., the lrt system is able to co - exist with automobiles. the low car floor means that roads can act as station facilities, and passengers can get on and off the cars in the street

    輕軌運輸系統lrt源起於歐洲街道電車street car ，街道電車一度在都市捷運化與私人機動化的浪潮沖擊下迅速沒落，但隨著都會地區機動車輛不斷增加，道路交通阻塞噪音環境破壞排放廢氣污染問題嚴重惡化之際，輕軌車輛技術已不斷提升，具備小轉彎半徑能力的聯結式車廂模組化列車編組車廂斷面長度加大加長低地板車廂流線型車廂設計，搭配先進控制系統及彈性的路權型式，使現代化輕軌系統具備有與生活空間結合重視環境問題與社會情勢並活用進化街車之都市交通工具等特徵與優點，如高性能輕軌列車與汽車共存，低底盤的車廂創造無障礙車站空間，道路即是車站設備，旅客可以在街區上下車，提供沿線居民高度的便利性，消除交通堵塞噪音及空氣污染等，輕軌系統並與街景充分的調和，成為活動的都市意象。
  6. Mdc embedded sewage treating device : it features obvious treating efficiency, less sludge production, easy maintenance, low noise, small floor coverage and less investment, etc

    Mdc型地埋式生活污水處理裝置：具有處理效果明顯，產泥量小，維修方便，運轉噪音低，佔地面積小，投資費用少等特點。
  7. It has good decoration effects. it can be adhere the face of floor and also can be paved on the wall directly. it can avoid the noise when you walk on it, let you innovate your imagination in such quiet, comfortable environment

    可以粘貼在高架地板上使用，也可以直接鋪貼在地面上使用，能大大減少人們在行走及搬運設備過程中產生噪音，使您在舒適寧靜的機房環境中發揮您的想象力及創造力。
  8. Inford caster factory produces with advanced equipment, latest technology and the best raw material, which ensure that our products are agile and durable, and can be wearable ; resist to impact, chemicals, high or low temperature ; non - marking and protecting the floor and running with no noise. our products are widely used in every walks of life and are selling well both home and abroad. they are in the top range in the line of casters no matter in sales or in quality. moreover, we are able to designand develop make - to - order products to fit you all kinds of demands

    我廠採用先進的設備、最新的科技，最好的材料保證腳輪使用靈活方便，經久耐用，在不同的場合具有耐磨、抗沖擊、抗化學品腐蝕、耐低溫、耐高溫、行駛無輪印、保護地板、噪音小等的性能。
  9. In this dissertation, a research on decreasing vibration and noise for equipment mounted on a floor was studied

    本文針對諸如機器設備上樓等柔性基礎的減振降噪問題進行了研究。
  10. The street noise was deafening ; who could hear someone yelling from a tenth floor

    街上的噪音震耳欲聾，誰能聽見一個人從10層樓發出的呼叫呢
  11. Acoustics - measurement of sound insulation in buildings and of building elements - laboratory measurement of in room impact noise by floor covering put in this room

    聲學.建築物和建築元件隔音測量.通過屋內地板覆蓋物減少屋內撞擊噪音的試驗室測量
  12. Adopt and thicken sills, 1. 5 times thicker than the ordinary floor, foot sense is better ; the fibrous structure of wood with thick bionic sill is close to the log, the noise reduction result is better

    採用加厚基材，比普通地板厚1 . 5倍，腳感更好；加厚仿生基材的木纖維結構接近原木，降噪效果更佳。
  13. Adopt and thicken sills, 1. 5 times thicker than the ordinary floor, foot sense is better ; the fibrous structure of wood with thick bionic sill is close to the log, the noise reduction result is better ; environmental protection is healthy ; ensure the environmental security of life to be healthy ; european en13329 highest standard of reaching the amount put into circulation of the city and reaching the free formaldehyde

    採用加厚基材，比普通地板厚1 . 5倍，腳感更好；加厚仿生基材的木纖維結構接近原木，降噪效果更佳；環保健康，保障生活環境安全健康；游離甲醛達市放量達到歐洲en13329最高標準。
  14. Through redesigning of pipe system to alter its character and using the ways to isolate vibration and reduce vibration, it is yielded very good results of reducing the vibration and noise. in some points the acoustic pressure level drops very much, such as in the standard point of number one pump the acoustic pressure level drops 15db ( a ) and in the standard point of cistern also drops 15db ( a ), and in the highest point of the acoustic pressure before redesign drops from 105db ( a ) to 44db ( a ), and in the second floor the acoustic pressure level have reached the requirment

    通過對管道結構的改造，減振和隔振措施的有效使用，使供水系統的振動和噪聲得到了有效的控制：使一號泵前的標準點和蓄水池前標準點的噪聲聲壓級都降低了15db （ a ） ，管道上測點的振動量降低了90 ；二樓居民門外的噪聲從55db （ a ）降到25db （ a ） ，遠低國家標準35db （ a ） ；在改造前噪聲最大點西側蓄水池的噪聲也由105db （ a ）降到44db （ a ） 。
  15. Acoustics. measurement of the acoustic insulation of building and building components. laboratory measurement of the reduction in transmission of impact noise due to floor covering and floating floors

    聲學.住宅和建築構件隔音能力測量.地板和活動墊板撞擊噪音傳播衰減的實驗室測量法
  16. Acoustics - measurement of sound insulation in buildings and of building elements - laboratory measurements of the reduction of transmitted impact noise by floor coverings on a heavyweight standard floor

    聲學.建築物和建築構件的隔聲測量.第8部分:重型標準地板鋪設面層使傳遞的撞擊噪音減低的實驗室測量
  17. Acoustics. measurement of sound insulation in buildings and of building elements. part 8 : laboratory measurements of the reduction of transmitted impact noise by floor coverings on a heavyweight standard floor

    聲學.建築物和建築元件的隔音測量.第8部分:通過標準厚重地板覆蓋物減少撞擊噪音傳播的試驗室測量
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