Metalloscopy
金相显微(镜)检验法
🔁 扩展释义
【医】 金属反应检查法
🗣️ 情景例句
There's a time for everything.
事情要一件一件地做。
A good horse oft needs a good spur.
好马常需好靴刺。
In 1929, three years after his flight over the North Pole, the American explorer, R.E.Byrd, successfully flew over the South Pole for the first time.
美国探险家 R。伯德在飞越北极3年之后，于1929年第一次飞越了南极。