Word · Frequency #17557
polyethylene
聚乙烯
a lightweight thermoplastic; used especially in packaging and insulation
- 1.
A polymer consisting of many ethylene monomers bonded together; used for kitchenware, containers etc.
由许多乙烯单体键合而成的聚合物；用于厨房用具、容器等。
- 2.
a lightweight thermoplastic; used especially in packaging and insulation
一种轻质热塑性塑料,尤用于包装和绝缘。
由许多乙烯单体键合而成的聚合物；用于厨房用具、容器等。；一种轻质热塑性塑料,尤用于包装和绝缘。；聚乙烯；[化] 聚乙烯
In use
Polyethylene is commonly used to make shopping bags.
The bottle is made of sturdy polyethylene, so it won't break easily.
Manufacturers often choose polyethylene for its flexibility and low cost.
be made of polyethylene
表示某种物品由聚乙烯材料制成时，常用 be made of 结构。
The bottle is made of polyethylene.
这个瓶子是由聚乙烯制成的。
polyethylene + noun
聚乙烯可直接放在名词前作定语，说明该名词的材质或类型。
Polyethylene film is widely used in packaging.
聚乙烯薄膜广泛用于包装。
be used in + noun phrase
描述聚乙烯的常见用途时，可用 be used in 后接应用领域。
Connections
Collocations
- polyethylene film
- 聚乙烯薄膜
- The food is wrapped in polyethylene film.食物用聚乙烯薄膜包裹。
- polyethylene bag
- 聚乙烯袋
- Please put the vegetables in a polyethylene bag.请把蔬菜放进聚乙烯袋。
- polyethylene pipe
- 聚乙烯管
- The plumber installed a polyethylene pipe.水管工安装了一根聚乙烯管。
- high-density polyethylene
- 高密度聚乙烯
- High-density polyethylene is used to make bottles.高密度聚乙烯用于制造瓶子。
- low-density polyethylene
- 低密度聚乙烯
- Low-density polyethylene is softer and more flexible.低密度聚乙烯更柔软、更有弹性。
- polyethylene foam
Learner notes
Memory Tip
poly- 是“多”，ethylene 是“乙烯”；想象许多乙烯分子手拉手连成长链，就成了聚乙烯塑料。
Context & Register
语域：formal 常见场景：packaging、insulation 该词多为正式或技术用语，常见于产品说明、材料规格和工业文献中；日常口语中通常说“塑料”而少用“聚乙烯”。
Pronunciation & Spelling
聚乙烯 (polyethylene) 的重音在 -eth- 上，词尾 -lene 读作 /ˌlin/。与它押韵的有 ethylene (/ˈɛθəˌlin/) 和 methylene (/ˈmɛθəˌlin/)。注意 line (/laɪn/)、scene (/siːn/) 和 benzene (/ˈbɛnziːn/) 拼写看起来相近，但读音不同，不要把 -lene 读成 /laɪn/ 或 /siːn/。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.