这幅画描绘的是从里亚托桥向北望的威尼斯大运河.The painting depicts the Grand Canal, Venice, looking north from the Rialto Bridge.乘地铁从里土满到伊斯灵顿要换三次车.Get from richmond to islington on the underground involve three change.戴利.汤姆森正从里圈赶上来了.Daley Thom...
At a low flow rate, fluid merely percolates through the void spaces between stationary particles.当流速低的时候, 流体只是穿过静止的颗粒之间的空隙.Water percolates through sand.水由沙中滤过.When gas percolates at a low speed in medium with low permea...
腐殖酸通常被看作是芳烃化合物的聚合物.Humic acids are usually regarded as polymers of aromatic compounds.芳烃加氢饱和及开环反应是一种提高柴油十六烷值的有效途径.Its hydrogenation activity in aromatics saturation and ring opening activity were investigated.扬子石化芳烃厂吸附塔出...