Surface active properties of disodium ethoxylated and propoxylated tetradecanoic acid ethanolamine sulfosuccinates were investigated.是什么意思？

Surface active properties of disodium ethoxylated and propoxylated tetradecanoic acid ethanolamine sulfosuccinates were investigated.

研究了乙氧基化和丙氧基化十四酸乙醇酰胺磺基琥珀酸单酯钠盐的表面活性.

surface

n. 表面，外观，外表，地面。水面；vi. 浮出水面，在表面工作，显露；vt. 使浮出水面，使成平面；adj. 表面的，外观的，外表上的，平地上的，肤浅的；

例句
Somewhere deep beneath the surface lay a caring character...
在内心深处的某个角落里埋藏着一颗爱心。

active

adj. 积极的，活跃的，有生气的，迅速的，敏捷的，有效的，起作用的；n. [语法]主动语态，积极分子，活跃的人；

例句
Having an active youngster about the house can be quite wearing.
家里有个好动的小孩会是相当累人的。

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。

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。

ethoxylated

乙氧基；

例句
Surface active properties of disodium ethoxylated and propoxylated tetradecanoic acid ethanolamine sulfosuccinates were investigated.
研究了乙氧基化和丙氧基化十四酸乙醇酰胺磺基琥珀酸单酯钠盐的表面活性.

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。

acid

adj. 酸味的，尖刻的，酸的，酸性的；n. <化>酸，酸味物质；

例句
This comedy of contemporary manners is told with compassion and acid humour.
这部当代风尚喜剧杂糅了悲悯的情怀和尖酸的幽默。

ethanolamine

n. 乙醇胺，氨基乙醇，胆胺；

例句
N - hydroxyethylpyrrolidone ( NHP ) was synthesized from � � - butyrolactone and ethanolamine on Y molecular sieve catalyst by two steps.
以改性Y分子筛为催化剂,γ-丁内酯和乙醇胺为原料,采用γ - 丁内酯法两步合成N - 羟乙基吡咯烷酮 ( NHP ).

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。

investigated

v. 调查( investigate的过去式和过去分词 )，审查，侦查，研究；

例句
He was being investigated for receiving bribes.
他因收受贿赂正在接受调查。