它经历了两个阶段, 简单定量阶段和精确定量阶段.用英语怎么说？

它经历了两个阶段, 简单定量阶段和精确定量阶段.

Two stages passed, briefness quantify and accurate quantify.

two

n. 两个，两个东西，两点钟，一对；adj. 两个的，我

例句
He has been absent from his desk for two weeks...
他已经有两个星期没有坐在办公桌前了。

stages

n. 台( stage的名词复数 )，舞台，站，阶段；

例句
He entered RAF service in the closing stages of the war...
战争快要结束的时候，他加入了英国皇家空军。

passed

adj. 已经通过的，已经过去的，考试及格的，（指红利）未及时发放的；v. 走过( pass的过去式和过去分词 )，通过，批准，度过；

例句
It was a Christmas when shoppers passed by expensive silks in favor of more practical gifts.
这是一个购物者不理会昂贵的丝绸衣服而热衷于更实用礼物的圣诞节。

briefness

n. 简单，短促；

例句
RIP is widely used because of its reliability, briefness and easy configuration.
rip使用非常广泛,它简单、可靠,便于配置.

quantify

vt. 确定…的数量，[逻辑学] 用量词限定；

例句
It is difficult to quantify an exact figure as firms are reluctant to declare their losses.
由于各家公司都不愿意公布所受的损失，所以很难得出一个精确的数字。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

accurate

adj. 精确的，准确的，正确无误的；

例句
Police have stressed that this is the most accurate description of the killer to date...
警方强调这是迄今对凶手最精确的描述。