Corundum disk

[医] 刚玉磨盘

🧩 词语组成解析

corundum
n. 刚玉, 金刚砂\\n[化] 刚玉
disk [dɪsk]
n. 磁盘;唱片;圆盘;光盘; v. 把…录成唱片;使成圆盘状;用圆盘耕地;

🗣️ 情景例句

We're very pleased that you are considering becoming a distributor of our company.
我们非常高兴你们正在考虑成为我们的批发商。
My grandfather got married in 1921.
我的祖父在1921年结婚。
it requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth's surface into orbit!
因此,从月球到地球的25万英里所消耗的能量要比从地球表面进入地球轨道的200英里所耗能量少97%。
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