1、The talus rests upon the upper surface of the calcaneus.
距骨突出于跟骨的上面。

2、The upper surface of glacier is riven by crevasses.
冰川的上表面已裂成冰隙。

3、The annular flange closely contacts the upper surface or underside of the table.
凸緣為環(huán)形結(jié)構(gòu)，凸緣貼合在桌子上表面或者下底面。

4、The upper surface of the fluid is under atmospheric pressure.
流體上表面受大氣壓力作用。

5、Liquid drains from the upper surface of the bubble and it soon becomes unstable.
液體從氣泡表面排出，氣泡很快變得不穩(wěn)定。

6、Small holes are pierced through the scoops to the upper surface of the tile.
一些小洞穿過(guò)了鏟子一直到瓷磚上表面。

upper surface翻譯