真しん空くう槽そう

Meanings

1

vacuum column

Technical term in computing, referring to a column used in vacuum-based processes or equipment.

真しん空くう槽そう内ないの圧あつ力りょくを一いっ定ていに保たもつ必ひつ要ようがある。
It is necessary to keep the pressure inside the vacuum column constant.