surface blown 中文意思是什麼
surface blown
解釋
面吹-
3 analyzing particle size of the wind - blown sediment and surface soil indicate that the former in 0. 02mm - 0. 2mm occupy about 40 % and 55 % of sloping field and shoaly land of bashang, which shows that bashang is the erosion and desertification region or the latency. 4 the search of decreasing effect of wood strap indicates that in lower wind speed the effect is distinct
3風蝕物及表層土壤顆粒粒徑分析表明，地表200cm高度內風蝕物粒徑在0 . 02mm 0 . 2mm之間；壩上地區坡梁地與灘地該粒徑范圍顆粒分別佔40和55左右，說明壩上地區是風蝕沙化或潛在風蝕沙化地區。 -
Whether sand can saltate from sand bed surface and quality of sand incipience are very important to the sand transport and the form of wind - blown - sand
沙粒能否起動以及起動質量如何，如起動初速度、起動角度等參數都直接關繫到沙粒的輸運和風沙兩相流形成。 -
Our research takes ptv technology to obtain data in the experimental set. the movement data of sand are aimed near the sand bed surface. out research demarcate the error of ptv method and provide a new way to research the dense wind - blown - sand flow
本文使用ptv測量系統在實驗裝置中獲得了近沙面的沙粒運動信息，解決了一系列測量方法和圖像處理中的實際問題，標定了實驗中ptv技術測量數據的誤差。 -
A large area of bare sandland distributed in beijing and its surrounding areas is one of sand source areas which contributes to high - frequent sand storms in beijing in recent years, whereas increasing of surface coverage condition is one of effective measures to lessen local blown - sand activities
摘要北京及其周邊地區分佈的大量裸露沙荒地是北京近年來沙塵暴頻發的主要沙源之一，而增加其地表覆蓋狀況則是遏止就地揚沙起塵的有效措施之一。 -
The burning surface of the powder then increases, the pressure rises and the rocket may be blown up.
此時，無煙藥燃燒表面增加，壓力上升，火箭可能爆炸。 -
Very high waves with long overhanging crests ; the resulting foam, in great patches, is blown in dense white streaks along the direction of the wind ; on the whole, the surface of the sea takes on a white appearance ; the tumbling of the sea becomes heavy and shocklike ; visibility affected
24 . 5 - 28 . 5非常高浪，出現拖長的倒懸浪峰大片泡沫隨風吹成濃厚白色條紋，海面白茫茫一片，波濤互相沖擊，能見度受到影響
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