criteria for noise 中文意思是什麼
criteria for noise
解釋
噪聲標準-
One is recommended by the chinese transportation ministry and is specified in " assessment criteria for environmental impact from road construction projects, jtj005 - 96 " ( to be referred as prediction model from transportation ministry ). the other is recommended by the national environmental protection bureau and is published in " the general guidelines for environmental assessment technologies ? ound environment, hj / t2. 4 ? 995 ". this model is the high way noise prediction model from the united states federal high way authority ( fhwa )
本論文針對當前我國道路交通噪聲預測中應用得極為廣泛的兩種模式：我國交通部在《公路建設項目環境影響評價規范（試行） （ jtj005 ? 96 ） 》推薦的模型（以下簡稱為交通部預測模型）和國家環境保護總局發布的《環境評價技術導則?聲環境[ hj t2 . 4 ? 1995 ] 》推薦的美國聯邦公路管理局（ fhwa ）公路噪聲預測模型（以下簡稱為fhwa預測模型） ，在進行預測時的比較研究。 -
Of the criteria adopted in 1973 for determining the noise emission standard for pump rooms in buildings
在一九七三年釐定大泵房發出噪音標準的準則為何 -
In the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load
針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。 -
Abstract : in the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load
文摘:針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。 -
The high clock frequency requirements will have to be weighed against the need for tighter design criteria that ensure high noise immunity.
高時鐘頻率的要求比高抗擾度的要求更為重要，因為高抗擾度可通過精心設計予以保證。 -
This paper illustrates detailedly the thin groupware auto - adaptive recognition system ; it also illlustrates the procession of capture image and take indispensable foreclose to wipe off noise in order to get boundary easilyer. the recognition system uses " hough " transform method to make the recognition area orientation, and according to the unstable environment such as lights which leads to the change of the image ' s brightness, thresholds picture using an iterative selection method and then growing process for cell image segmentation based on local color similarity and global shape criteria, adaptively gets the best threshold to divide the washer off the background. the recognition system uses the classifier based on minimal - error - ratio bayes method to make decision after getting image characteristic
本文詳細介紹了薄形組合件自適應識別系統；闡明了圖像的分通道自動採集過程，以及對採集到的原始圖像所進行的預處理方法。通過採用哈夫變換去除偽邊緣點的方法，有效地解決了識別區域的定位問題。針對裝配零件（主要是墊片）薄、小導致圖像信息少、識別難度大，以及材質不一導致採集到的組合件圖像亮度波動等問題，提出了使用最佳閾值迭代法和使用種子填充的圖像串列分割技術，自適應地找出最佳閡值，使墊片和背景分離，從而提取墊片數目信息。 -
Criteria for evaluation room noise
房屋噪音評定準測 -
Does not comply with objective technical criteria in the form of acceptable noise levels as set out in the technical memorandum for the assessment of noise from places other than domestic premises, public places or construction sites
不符合管制非住用處所非公眾地方或非建築地盤噪音技術備忘錄訂明的可接受的噪音聲級技術準則 -
Standard guide for selection of environmental noise measurements and criteria
環境噪聲測量和標準選擇的標準指南
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