Twenty - four animals were randomized into control, lactated Ringer's solution and HES groups.是什么意思？

Twenty - four animals were randomized into control, lactated Ringer's solution and HES groups.

方法:24只动物随机分为对照组 、 乳酸林格液组和hes组.

twenty

n. 二十，二十个，二十多岁，二十年代，许多，大量；num. 二十；adj. 二十的；

例句
...an increase of more than twenty per cent on the basic pay of a typical coalface worker...
普通采煤工人的底薪上浮超过20％

four

num. 四，四个，第四；n. 四个人（或事物）的一组，得四分的一击，四人赛艇；

例句
His car was held up and he was abducted by four gunmen...
他的车遭遇拦劫，随后他被4名持枪歹徒劫持。

animals

n. 动物( animal的名词复数 )，兽，兽性，粗野残暴的人；

例句
They are saying, with varying degrees of absolutism, that animals should not be exploited at all.
他们都多多少少带有些绝对地说动物根本不该被拿来利用。

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。

randomized

--

例句
Twenty - four animals were randomized into control, lactated Ringer's solution and HES groups.
方法:24只动物随机分为对照组 、 乳酸林格液组和hes组.

into

prep. （表示方向）进入…中，（表示所属）输入，（表示状态）进入…状态，（表示时间）持续到；

例句
By 1838, the abolitionists had shamed parliament into ending slavery in British colonies...
到1838年，废奴主义者迫使议会出于道德压力而废除了英国殖民地的奴隶制。

control

vt. 控制，管理，限制，支配；n. 支配权，操纵者，（对国家、地区、机构等的）管理权，（键盘上的）控制键；

例句
It is arguable whether he ever had much control over the real economic power...
他是否掌控过真正的经济大权还有待证实。

lactated

v. （指哺乳动物）分泌乳汁( lactate的过去式和过去分词 )；

例句
Twenty - four animals were randomized into control, lactated Ringer's solution and HES groups.
方法:24只动物随机分为对照组 、 乳酸林格液组和hes组.

solution

n. 解决，溶解，溶液，答案；

例句
...an aqueous solution containing various sodium salts.
含各种钠盐的水溶液

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。

groups

n. 组( group的名词复数 )，群，小型流行音乐演奏组，集团；v. 使成群，集合( group的第三人称单数 )，分类，归类；

例句
All-male groups will not be accepted.
清一色的男性团体将不被接纳。