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polystyrene

/ˌpɑliˈstaɪrin/ /ˌpɒliˈstaɪriːn/

Meanings
noun

聚苯乙烯，保丽龙

A vinylic polymer of styrene, CH2CHphenyl.

Examples :

"The coffee cup was made of polystyrene, which kept the hot liquid from burning my hand. "
这个咖啡杯是用聚苯乙烯（保丽龙）做的，所以拿着它，热咖啡不会烫到我的手。
material substance compound chemistry

Related Words

Illustration chain

chain noun

/ˈt͡ʃeɪn/

链条，锁链。

"He wore a gold chain around the neck."

他脖子上戴着一条金链子。

Illustration benzene

benzene noun

/ˈbɛnziːn/

苯， 苯环

"The chemistry student learned that benzene is a ring-shaped molecule containing carbon and hydrogen atoms, often used in making plastics and other industrial chemicals. "

化学系的学生学到，苯（苯环）是一种环状分子，由碳原子和氢原子构成，常用于制造塑料和其他工业化学品。

Illustration recycle

recycle noun

/ɹiˈsaɪkəl/

回收利用，循环利用

"The recycle of old newspapers was a successful project at the school. "

学校里旧报纸的回收利用是一个成功的项目。

Illustration coffee

coffee noun

/ˈkɑ.fi/ /ˈkɒ.fi/ /ˈkɔ.fi/

咖啡， 咖啡豆饮料

"My dad made a strong coffee before going to work. "

我爸爸上班前煮了一杯浓咖啡。

Illustration liquid

liquid noun

/ˈlɪkwɪd/

液体，液态。

"A liquid can freeze to become a solid or evaporate into a gas."

液体可以冻结成固体，也可以蒸发成气体。

Illustration polymer

polymer noun

/ˈpɒl.ɨ.mə/ /ˈpɑ.lɪ.mɚ/

聚合物，高分子。

"The plastic in my school's new chairs is a polymer. "

我学校新椅子上的塑料是一种聚合物，它是由很多叫做单体的小分子连接而成的。

Illustration which

which pronoun

/wɪt͡ʃ/

哪个，哪些

"By now, you must surely know which is which."

到现在，你肯定应该知道哪个是哪个了吧。

Illustration molecules

molecules noun

/ˈmɑːlɪkjuːlz/ /ˈmɒlɪkjuːlz/

分子

"Hydrogen chloride is a diatomic molecule, consisting of a hydrogen atom and a chlorine atom."

氯化氢是双原子分子，它由一个氢原子和一个氯原子构成。

Illustration burning

burning verb

/bɜːnɪŋ/ /bɝnɪŋ/

燃烧，焚烧

"He burned his manuscript in the fireplace."

他把他的手稿在壁炉里烧掉了。

Illustration alkane

alkane noun

/ˈæl.keɪn/

烷烃

"The carbon chain of an alkane may be linear or branched, but must not contain loops (cycles); its chemical formula is of the form CnH2n+2."

烷烃的碳链可以是直链或支链，但不能包含环状结构；它的化学式为CnH2n+2。

Illustration difficult

difficult verb

/ˈdɪfɪkəlt/

使 затруднить，使复杂，为难

"The complicated instructions on the new software difficult me from completing the project on time. "

新软件上那些复杂的说明让我无法按时完成项目。

Illustration styrene

styrene noun

/ˈstaɪriːn/ /ˈstaɪriːn/

苯乙烯

"The factory uses large quantities of styrene to produce polystyrene cups. "

这家工厂使用大量的苯乙烯来生产聚苯乙烯杯子。