Fractography
n. 金属断面的显微镜观察\\n[医] 参差表面描绘术
🗣️ 情景例句
we're not sure
我们还不能肯定
Could you tell me where I can find these books?
您能告诉我在哪儿能找到这些书吗？
Hubert Latham took off from the French coast in his plane the 'Antoinette IV.
休伯特。莱瑟姆驾驶“安特瓦特4号”飞机从法国海岸起飞，