Preparation, properties and kinds of polyurethane adhesives were described.是什么意思？

Preparation, properties and kinds of polyurethane adhesives were described.

综述了聚氨酯胶粘剂的合成 、 特性和种类.

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。

properties

n. 房地产(property的名词复数)，财产，所有权，特性；

例句
Many of the properties are in a desperate state but none is too far gone to save.
很多地产情况都很糟糕，但都还不至于无法挽救。

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。

kinds

n. 种类( kind的名词复数 )，类型，一类人（或事物），本质；

例句
There are 32 different kinds of chocolate on sale along with the bread and cakes.
有32种不同的巧克力与面包和蛋糕一起出售。

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。

adhesives

n. 黏合剂( adhesive的名词复数 )；

例句
Preparation, properties and kinds of polyurethane adhesives were described.
综述了聚氨酯胶粘剂的合成 、 特性和种类.

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。

described

adj. 被看到的，被发现的；v. 描写( describe的过去式和过去分词 )，叙述，画出（图形等），形容；

例句
The President described the killings as an abominable crime...
总统称这些血案为令人发指的罪行。