Heteric-block nonionics
[化] 混嵌非离子表面活性剂; 混嵌共聚非离子表面活性剂
🧩 词语组成解析
block
[blɑk]
n. 块;街区;<英>大楼，大厦;障碍物，阻碍;
vt. 阻止;阻塞;限制;
(=non-ionic surface active agent)非离子表面活性剂
🗣️ 情景例句
What time do you usually have supper?
你通常几点吃晚餐？
We were pleased to hear from your letter of 6 August that you were impressed with our selection of toys.
我们很高兴收到你方8月6日来函得知你方对我们的玩具非常感兴趣。
They are often more industrious, useful citizens than those who are never late.
他们与那些从不迟到的人相比，常常是更勤奋有用的公民。