上头的英文：
above
on top of
on the surface of
参考例句：
The mast below the topgallant mast in a square - rigged ship and highest in a fore - and - aft - rigged ship.
中桅在纵帆装船的紧挨下桅上头的中桅，而在横帆装船上则指在上桅之上的.桅The crows above the forest are calling.
乌鸦树林上头啼叫。- with his handwriting?
-上头却有着他的笔迹呢?The shelf began to buckle because I put too many books on it.
这架子开始弯曲，因为我放太多书在上头。It's this habit of worrying that's made her ill.
这病就是打这个秉性上头思虑出来的c gases in the air such as car exhaust, are adsorbed onto it, so I don' t breath so much of it in.
空气中的有毒气体，比如汽车废气可以被吸附在上头，这样我就不会吸进去那么多有毒气体了。Forty-eight slivers form the breaker-drawing unit are combined to form the lap in the lapper for the comber.
在成卷机上头道并条机的48根棉条并合在一起制成精梳机所需要的棉条。surface是什么意思：
n. 表面；表层；面；顶面；操作台
v. 升到水面；露面；醒来；铺设
impress a mark on [ upon ] a surface=impress a surface with a mark
在表面上打记号He finally surfaced at midday.
他终于在中午时醒过来了。The towers are surfaced with steel plates.
在塔面上加了一层钢板。An extremity of a solid is a surface.
立体的边界之一是一个面。 top surface of coal bed
煤层顶面等高线图
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