quaternary system

常見例句

This quaternary system is a simple eutectic type, and no double salt or solid solution was found.
結(jié)果表明：該四元體系屬簡單共飽型，無復鹽或固溶體形成；
The reducing in water production of tube well is a familiar problem, especially in the loose bed of the quaternary system.
管井出水量減少是常見的問題，特別是第四系松散層中的管井更為普遍。
Based on solid phosphoric acid catalyst (SPAC) T 49 composed of Si P B ternary system a new SPAC T 99 composed of Si P B D quaternary system was developed.
在硅-磷-硼三元體系的T- 49固體磷酸催化劑基礎(chǔ)上，開發(fā)了硅-磷-硼- D四元體系的T- 99固體磷酸催化劑。