Reachability matrix
[计] 可达矩阵\\n[化] 可及矩阵
🧩 词语组成解析
[计] 可达性\\n[化] 可达性; 能达性
🗣️ 情景例句
Pete's full of surprises. Pete
总是出人意表。
Care brings grey hair.
忧虑催人老。
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%。