Reduction - metathesis method for preparation of strontium carbonate from celestite is developed.是什么意思？

Reduction - metathesis method for preparation of strontium carbonate from celestite is developed.

提出还原 - 复分解法制备碳酸锶的新工艺.

reduction

n. 减少，降低，[数学]约简，[摄影术]减薄；

例句
Despite a reduction in earnings there are compensations in moving to the north-east where the quality of life is excellent...
尽管钱会挣得少一点，搬到生活质量高的东北部去还是有很多好处的。

metathesis

n. 调换，转位，交换；

例句
Reduction - metathesis method for preparation of strontium carbonate from celestite is developed.
提出还原 - 复分解法制备碳酸锶的新工艺.

method

n. 方法，条理；

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

for

prep. 为，为了，倾向于，关于，当作；conj. 因为，由于；

例句
I've come looking for a bit of advice.
我特来讨教。

preparation

n. 准备，预备，准备工作，配制品，制剂；

例句
You could never eliminate risk, but preparation and training could attenuate it...
风险不可能完全消除，但可以通过防范和培训来降低。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

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

carbonate

n. 碳酸盐；vt. 充二氧化碳于；

例句
Aspirin is synthesized through O - acylating reaction from acid and anhydride acid with anhydrous carbonate as catalyst.
以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O - 酰化反应合成了阿司匹林.

from

prep. （表示时间）从…，（表示原因）因为，（表示来源）来自…，（表示分离）与…分离[隔开]；

例句
...an abortive attempt to prevent the current President from taking office.
企图阻止现任总统连任的失败尝试

celestite

n. 天青石；

例句
Reduction - metathesis method for preparation of strontium carbonate from celestite is developed.
提出还原 - 复分解法制备碳酸锶的新工艺.

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

developed

adj. 先进的，发达的（国家或地区）；

例句
He had developed a slight American accent.
他说话带上了一点轻微的美国口音。