upper surface meaning in English
上表面
上翼面
Examples
- The upper surface of glacier is riven by crevasses .
冰川的上表面已裂成冰隙。 - The talus rests upon the upper surface of the calcaneus .
距骨突出于跟骨的上面。 - The upper surface of the fluid is under atmospheric pressure .
流体上表面受大气压力作用。 - The upper surface of the bed remains horizontal when the container is tipped .
当容器倾斜时床层上表面保持水平。 - Liquid drains from the upper surface of the bubble and it soon becomes unstable .
液体从气泡表面排出，气泡很快变得不稳定。