The reaction kinetics leading ilmenite directly by acid was investigated.是什么意思？

The reaction kinetics leading ilmenite directly by acid was investigated.

研究了盐酸直接浸取钛铁矿的浸取动力学.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

reaction

n. 反应，反作用力，反动，保守；

例句
When Chappel approached me about the job, my first reaction was of disbelief...
当查普尔为这份工作找我商量时，我的第一反应是不相信。

kinetics

n. 动力学；

例句
The kinetics and mechanism of exciplex formation of 9,10 - dicyanoanthracene ( DCA ) by acenaphthenone ( ANO ) have been studied.
研究了苊酮 ( ANO ) 对9,10-二氰蒽 ( DCA ) 的荧光猝灭与激基络合物形成的动力学与机理.

leading

adj. 重要的，主要的，前列的，首位的；n. 行距，铅框；v. 领导（lead的ing形式）；

例句
...the number of mergers and acquisitions made by Europe's 1,000 leading firms.
欧洲1,000家龙头企业的合并和收购案例的数目

ilmenite

n. 钛铁矿；

例句
The reaction kinetics leading ilmenite directly by acid was investigated.
研究了盐酸直接浸取钛铁矿的浸取动力学.

directly

adv. 直接地，不久，立即，正好地，恰好地，坦率地；conj. 一…就…；

例句
The two foreign ministers did not address each other directly when they last met...
这两位外交部长在上次会面时并没有直接的言语交流。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

acid

adj. 酸味的，尖刻的，酸的，酸性的；n. <化>酸，酸味物质；

例句
This comedy of contemporary manners is told with compassion and acid humour.
这部当代风尚喜剧杂糅了悲悯的情怀和尖酸的幽默。

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

investigated

v. 调查( investigate的过去式和过去分词 )，审查，侦查，研究；

例句
He was being investigated for receiving bribes.
他因收受贿赂正在接受调查。