butadiene

/ˌbjuːtəˈdaɪiːn/ /ˌbjuːtəˈdiːn/

Meanings

noun

丁二烯

An unsaturated hydrocarbon, CH2=CH-CH=CH2; it is obtained from petroleum and is used in the preparation of the synthetic rubber polybutadiene.

Examples :

"Many tires are made using butadiene, a chemical derived from petroleum. "

许多轮胎都是用丁二烯制成的，这是一种从石油中提取的化学物质。

Related Words

hydrocarbon noun

/ˈhaɪdroʊˌkɑːrbən/ /ˈhaɪdrəˌkɑːrbən/

碳氢化合物，烃。

"Gasoline is a hydrocarbon fuel used in many cars. "

汽油是一种碳氢燃料，很多汽车都在使用。

from preposition

/fɹɒm/ /fɹʌm/

来自，从。

"I got a letter from my brother."

我收到了一封我哥哥寄来的信。

unsaturated adjective

/ˌʌnˈsætʃəˌreɪtɪd/ /ʌnˈsætʃəˌreɪtɪd/

未饱和，不饱和。

"The sugar water is still unsaturated; I can add more sugar and it will dissolve completely. "

这糖水还未饱和，我可以再加些糖，它也能完全溶解。

preparation noun

/pɹɛpəˈɹeɪʃən/

准备，预备，筹备

"The preparation for the history test took her several hours. "

为历史考试做准备，她花了几个小时。

using verb

/ˈjuːzɪŋ/

使用，利用。

"She is using a calculator to solve the math problem. "

她正在使用计算器来解决这道数学题。

petroleum noun

/pəˈtɹoʊliəm/

石油，原油。

"The factory used petroleum to fuel its machinery. "

这家工厂使用石油作为燃料来驱动机器运转。

obtained verb

/əbˈteɪnd/

获得，取得。

"She obtained her driver's license after passing the driving test. "

她通过了驾驶考试，获得了她的驾照。

rubber noun

/ˈɹʌbə(ɹ)/ /ˈɹʌbɚ/

橡胶，橡皮。

"My brother used rubber bands to hold the papers together. "

我哥哥用橡皮筋把这些纸捆在了一起。

derived verb

/dɪˈɹaɪvd/

获得，取得，源于。

"The student derived the answer to the math problem from the formula. "

这个学生从公式推导出了这道数学题的答案。

tires verb

/ˈtaɪ̯ə(ɹ)z/ /ˈtaɪ̯ɚz/

疲倦，劳累。

"After a long day at school, the children tires quickly and want to go to bed. "

在学校上了一整天的课后，孩子们很快就觉得疲倦，想睡觉了。

synthetic noun

/sɪnˈθɛtɪk/

合成物，人造物

"The scientist studied the properties of the synthetic fiber. "

科学家研究了这种合成纤维的特性。

chemical noun

/ˈkɛmɪkəl/

化学物质，化学品

"The scientist studied the chemical composition of the soil sample. "

这位科学家研究了土壤样本的化学物质组成。