等效噪聲級 的英文怎麼說

中文拼音 [děngxiàozàoshēngjí]
等效噪聲級 英文
equivalent noise level
  • 等 : Ⅰ量詞1 （等級） class; grade; rank 2 （種; 類） kind; sort; type Ⅱ形容詞（程度或數量上相同） equa...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  1. The state - of - art “ zhongwei ” series machines deliver stable performance in varied function with user - friendly operation ; the big output servo system applied assures low - noise, effective production of precise patterns, which are widely used in elegant mattress, cloth, cushion, sleeping bags and other bedclothes

    本公司生產的「中威牌」系列電腦絎縫機造型美觀、布局合理、結構新穎、功能齊全、性能可靠、操作簡便易懂、效率高、噪聲低，採用大功率進口伺服系統，產品關鍵配件全部進口，使機器性能穩定、功能更強、精度更高；絎縫出來的花樣精確美觀，廣泛適用於高級床墊、服裝、靠墊、睡袋、床上用品等各種產品。
  2. In this paper the train running noise level has been predicted with the theory of point sound source. the sound exposure level of a train set pass, equivalent continuous sound level and maximum sound level of a train set pass has been taken as estimate values, and some kinds of affixation attenuation on the course of noise propagation is considered, then the corresponding visual software has been developed. these make it convenient and precise to predict the noise level

    本文從點聲源的理論出發，對列車運行噪聲進行預測計算，採用一列車通過時的單發暴露聲級、時間特性的最大聲壓級和一定時間內的等效聲級等作為噪聲評價量，並考慮了噪聲傳播過程中的各種附加衰減，編制了相應的可視化軟體，使噪聲預測計算方便、準確。
  3. We got a new model centrifugal fan by the mathematics optimum design, experiment optimum design, lots of mathematics calculation and regress calculation in the paper. the efficiency of this new fan is increased 6. 44 % and the noise is reduced 4. 78db than that of the original fan

    本文通過數學優化和試驗優化相結合的方法，並對實例經過大量的數學計算、試驗及回歸計算等得到了一種新型離心式通風機，該通風機比它的原型機（ 4 - 72no . 4a ）效率提高了6 . 44 ，比a聲級噪音降低了4 . 78db 。
  4. Come to the road vehicle breakdown, circadian variation and variation week. use of equivalent continuous a levels and the cumulative percentage of the level of traffic noise test evaluation, proportional prediction right sontu street next five years, the traffic noise trend forecast

    運用等效連續a聲級及累計百分數聲級對測試的交通噪聲進行評價，採用比例預測法對雄楚大街未來5年交通噪聲的發展趨勢進行預測。
  5. Embedded technologies, multi - way technologies and sampling technologies are used to reduce the sampling rate by software, so that the system can provide appropriate image format according to the condition of network and can eliminate aliasing noise. the system also uses motion detection to control the frame rate. therefore, the system can save transmission bandwidth effectively and design to provide multiple degrees qos according to the network condition

    本方案採用了嵌入式技術和多路技術，並從采樣技術入手，軟體調整采樣率，使得系統能夠根據網路狀態提供適當格式的圖像，消除欠采樣噪聲，而且通過運動檢測來控制幀率，從而可以有效地節省傳輸帶寬，達到根據網路情況自適應地提供多種qos服務等級的目的。
  6. Y series has the advantages of high efficiency, energy saving, fine operation performance, small vibration, low noise, long service life, high reliablility, convenient maintenance, big breakaway tor que, fixing measurement and power grade completely conform to iec standard. it enploys grade b insulation, ip44 class for shell protection and ic411 cooling mode

    系列電動機具有高效、節能、性能好、振動小、噪聲低、壽命長、可靠性高、維護方便、起動轉矩大等優點。安裝尺寸和功率等級完全符合iec標準。採用b級絕緣、外殼防護等級為ip44 ，冷卻方式ic411 。
  7. Close to a million people at home suffer road traffic noise higher than 70 db ( a ) l10 ( l hr ), which is the minimum acceptable standard in the hong kong planning standards and guidelines

    香港規劃標準與準則訂明的最低可接受道路噪音標準，是每小時有一成時間的等效連續聲級為70分貝（ a ） ，然而，香港有接近100萬人在家裡要忍受超逾這標準的道路噪音。
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