confined diameter 中文意思是什麼
confined diameter
解釋
限制-
The equipment could mill all kinds of material which could be milled on traditional pulverizer, but also could mill powder which strictly prescribe the maximal diameter and size distribution is confined, such as kaoline, talcum powder, copycat powder, coating, mica, hormones, alumina etc
設備都能超細加工在普通粉碎機上能夠被粉碎的物料，尤其適合加工那些嚴格規限最大顆粒井要求粒度分佈狹窄的產品，比如高嶺土、滑石粉、復印機粉、塗料、雲母、生長素、氧化鋁等。 -
The thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced. the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : for a single row normal impingement, the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio, and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall, the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling, the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing
對于單排垂直射流，沖擊冷卻效果隨射流雷諾數的增加、孔間距與直徑比的減小而得到提高，沖擊間距比為2時換熱效果最好;沖擊孔中心線向通道封閉一側傾斜后，射流沖擊冷卻的范圍變窄，當沖擊間距比大於2時駐點區的對流換熱能力明顯降低;對于雙排沖擊射流，孔排間距與直徑比的增加使沖擊冷卻范圍變大，但在兩排孔之間區域的對流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下，後排射流的沖擊換熱效果要遜於前排射流。 -
This process is called carbon nanotube - confined reaction. sic grains and solid sic whiskers with the diameter of 120 nm to 160 nm are formed by carbon nanotube - confined reaction. the size of grains and the whisker diameters increase
採用c納米管限域法所生長的sic晶須則是實心的，直徑達120nm 160nm ，並有sic顆粒生成，生長溫度越高，合成晶須的直徑和顆粒的粒徑越大。
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