Mercator might be used by a geologist mapping current directions in Palaeozoic sediment.地质学家可用麦卡托投影来绘制古生界沉积中的水流方向.The petroleum exploration geologist working with subsurface channel sandstone must have a background knowl...
轧棉机是把棉籽从棉花里分离出来的机器.A gin is a machine to separate seeds from cotton.轧棉机是把棉籽从“棉花”里分离出来的机器.A gin a machine to separate seeds from cotton.你发明轧棉机的过程? 好吧, 再见.Was it how you invented the cotton gin? - Okay, goodbye....