The canvascovering the plates is easily penetrated by oil, but is impenetrable to the wax, so that the oil drips down from the canvas into a trough beneath the press.
盖着帆布的板很容易被油穿透，但石蜡不能穿透，这样，油就从帆布滴至压滤机下面的槽内。
2
A protective rooflike covering, often of canvas, mounted on a frame over a walkway or door.
一个保护性的屋顶状遮蔽物，常用帆布制成，置于一个走廊或门的架上。
3
Niubi Newbie Kids II will feature 19 up and coming talents, covering a diverse medium from oil on canvas to mixed media installations.