Strontium aluminate long persistence phosphors were prepared through homogeneous precipitation method.是什么意思？

Strontium aluminate long persistence phosphors were prepared through homogeneous precipitation method.

采用均匀沉淀法制备铝酸锶基质长余辉发光材料.

aluminate

n. 铝酸盐；

例句
Strontium aluminate long persistence phosphors were prepared through homogeneous precipitation method.
采用均匀沉淀法制备铝酸锶基质长余辉发光材料.

long

adj. 长的，长时间的，冗长的，过长的，长音的；adv. 长久地，始终，遥远地；n. 长时间，长时期，[语]长音节，（服装的）长尺寸，长裤；vi. 渴望，极想；

例句
As long as most people are happy to have the monarchy, the abolitionist position is an arrogant fantasy.
只要大多数人还乐意保留君主制，废除它的主张就是痴人说梦。

persistence

n. 坚持不懈，执意，持续，留存，（荧光屏上余辉的）保留时间；

例句
His industry and persistence suggest that he was an ant in a previous incarnation.
他的勤奋与坚持表明他前世是只蚂蚁。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

prepared

adj. 事先准备好的，愿意的，期望的；adv. 事先准备好地，愿意地，期望地；v. 准备( prepare的过去式和过去分词)，预备（饭菜），配备，使（自己）有准备；

例句
The officers and crew prepared to abandon ship in an orderly fashion.
全体船员秩序井然地准备弃船。

through

prep. 通过，穿过，经由，透过，凭借；adv. 从头到尾，彻底，自始至终；adj. （电话）接通，通话完毕，有洞的，直达的；

例句
The proposal was instantly voted through with two to one in favour, accompanied by enthusiastic applause...
在热烈的掌声中，提案以2比1的优势很快通过了表决。

homogeneous

adj. 同性质的，同类的，由相同（或同类型）事物（或人）组成的，均匀的，[数]齐性的，齐次的；

例句
The unemployed are not a homogeneous group...
失业者不能一概而论。

precipitation

n. 匆促，沉淀，（雨等）降落，某地区降雨等的量；

例句
Strontium aluminate long persistence phosphors were prepared through homogeneous precipitation method.
采用均匀沉淀法制备铝酸锶基质长余辉发光材料.

method

n. 方法，条理；

例句
...an accrual method of accounting.
会计学中的应计法