contaminant concentration 中文意思是什麼
contaminant concentration
解釋
污染物濃度- contaminant : n. 沾染物（質），（使清潔空氣等污染的）污染物。
- concentration : n. 1. 集中。2. 【化學】提濃，蒸濃，濃縮；濃度；稠密度；【礦物】汰選，選礦，富化。3. 集中注意，專心。
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Modification of rinsing techniques by installing cascading or counter-current rinse systems increases the contaminant concentration.
安裝了階梯式裝置或對流漂洗裝置，可改進漂洗技術，把污染物的濃度提高。 -
Abstract : with numerical simulation method the effect of the airflow pattern created by the exponential inlet on contaminant concentration and thermal comfort in an operating room was investigated
文摘:就變化風速的送風口所產生的氣流流型對外科手術室內的細菌濃度和人體舒適的影響進行了數值模擬分析。 -
By the numerical simulation, calculate the distribution of velocity ^ temperature and contaminant concentration of air in the room under different modes of air flow organization, and through analysing the outcomes of simulation, draw some conclusions
對常見的辦公室環境，不同送回風方式下的室內空氣的速度、溫度及污染物濃度的分佈進行模擬計算，並對模擬結果進行分析，得出結論。 -
Based these researches acquired and using a mathmatical model, this thesis tries to research the contaminant concentration distributions of three - dimention indoor turbulent flow by means of computational fluid dynamics and heat transfer, and then works out the ventilation efficiency
本文企圖在前人的基礎上，通過建立相應的數學模型，用流體流動數值計算方法來模擬室內三維的紊態氣流中的污染物濃度分佈，進而分析計算室內的通風效率，得出通風效率較好的室內氣流組織形式。 -
The research results show that compared with the uniform inlet velocity profile, the exponential inlet velocity profile has more advantages to get lower contaminant concentration, to prevent patient and operating apparatus in the operating area from infection by airborne disease germs and to reduce the airflow rate needed for pollutant concentration control
研究表明，與通常採用的均勻風速的送風口相比，變化風速的送風口對于降低手術室工作細菌濃度，防止病人手術切口及手術器械等回風氣流攜帶的浮遊細菌再次感染，以及減少手術室的送風量等方面具有明顯的優點。 -
The result showed that the contamination situation in the lower zone of the office, i. e. the zone of occupants, was affected by of that of supply air. the supply air contamination should be kept to a low level in order to provide a good indoor air quality. however, the variation of the supply pollutant concentration has no influence on the indoor contaminant distribution of such system
本文針對氣態污染物，研究了不同送風濃度對系統的影響，結果表明：置換通風房間的下部區域受送風污染物濃度的影響較大，人的工作區恰好處于該區，實踐中需要控制好送風濃度以保證人呼吸區的空氣品質；但是送風濃度的變化並不影響置換通風下污染物的分層分佈的特點。 -
The traditional distributions of temperature and concentration just mark the final state that a convection system has reached but convey the information about how the heat and contaminant is transported across the system, and therefore we cannot get to know the natural characteristics of convection
由於傳統的溫度與濃度等值線分佈僅展示了對流傳熱傳質系統所達到的最終狀態，而沒有提供熱與污染物的傳輸信息或結構，因此我們無法知道對流行為的本質特徵。 -
Assessing risk is often a time consuming process, as it not possible in most instances to test for toxicity directly on human subjects and thus multiple indirect tests must be conducted for scientists to understand at what concentration level the contaminant may become a health risk
這個過程可能要花費很長的時間，因為大多數情況下都不可能以人體作為實驗對象進行毒性評估，而科學家必須通過多種間接的試驗才能弄清楚有害物質達到什麼樣的濃度才會對健康造成危害。 -
Describe the local, regional, national or global condition of the environment as a result of your department bureau s contribution i. e. environmental condition indicators, e. g. area rehabilitated in a defined local area, concentration of a specific contaminant in a water body
說明部門政策局對本地地區全國或國際環境所作的貢獻即環境情況參數，例如區內個別指定范圍內修復的地方水域內個別污染物的濃度 -
Ventilation function and tracer - gas decay theory are applied to design the experiment. in the experiment, velocity and carbon dioxide concentration are measured and carbon dioxide time - levels in different experimental cases are obtained. also, the effect of moving people in experimental room on contaminant field is analyzed and subjective feelings are investigated
本課題首次以旋流通風方式為研究主線，運用通風方程和示蹤氣體衰減理論設計實驗方案，對旋流通風方式下普通會議室的速度、二氧化碳濃度進行了測試，分析了人員隨意走動對濃度分佈的影響，並調查了受試人員對各工況的主觀評價。
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