The different contents of various alkylation products were obtained with different catalysts.是什么意思？

The different contents of various alkylation products were obtained with different catalysts.

烷基化产物以4-枯基苯酚,2,4-二枯基苯酚及2,4,6-三枯基苯酚为主.

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。

different

adj. 不同的，各式各样的，个别的，不平常；

例句
Different schools teach different types of syllabus, from the highly academic to the broadly vocational.
不同的学校有不同的教学计划，从高度学术的到普通职业教育的，不一而足。

contents

n. 内容，（书、讲话、节目等的）主题，含量，所含之物( content的名词复数 )，（书等的）内容，目录，容量，含量，（书、讲话、节目等的）主题；

例句
Why are the contents of the next person's shopping trolley always more alluring than one's own?
为什么旁边人购物车里的东西看起来总是比自己车里的更诱人呢？

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。

various

adj. 各种各样的，多方面的，许多的，各个的，个别的；

例句
Prices start at £1,095 per person, including flights, hotel accommodation and various excursions...
起价为单人1,095英镑，包括机票、旅店住宿和各种出游费用。

alkylation

n. 烷化，烃化；

例句
These derivatives are readily obtained by alkylation of 2 - mercaptopyridine and alkyl halides under alkaline conditions.
这些衍生物可以容易地在碱性条件下通过 2- 巯基吡啶和卤代烷的烷基化而得到.

products

n. 乘积( product的名词复数 )，（自然、化学或工业过程的）产物，产量，制品；

例句
The illegal trade in animal products continues to flourish...
野生动物制品的非法交易仍旧猖獗。

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。

obtained

v. 获得( obtain的过去式和过去分词 )，买到，（规则、制度、习俗等）存在，流

例句
I had obtained the authentic details about the birth of the organization.
我已经掌握了有关该组织诞生的可靠的详细资料。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

catalysts

n. <化>催化剂( catalyst的名词复数 )，触媒，促进因素，有感染力的人；

例句
The Greens were the catalysts of a necessary change in the European consciousness.
绿党促使欧洲人的观念发生了必要的改变。