Divalet ion
[电] 二价离子
🧩 词语组成解析
ion
['aiən]
n. <物>离子;
🗣️ 情景例句
I like that.
我喜欢这样。
I'm gong to show him how to paint.
我正要指点他如何画画。
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%。