aldehydes

/ˈæl.dɨ.haɪdz/

Meanings

noun

醛，乙醛类。

Any of a large class of reactive organic compounds (R·CHO) having a carbonyl functional group attached to one hydrocarbon radical and a hydrogen atom.

Examples :

""Some fruits, like ripe apples, contain aldehydes, which contribute to their characteristic sweet smells." "

有些水果，比如成熟的苹果，含有醛类，这些物质赋予了它们特有的香甜气味。

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。

organic noun

/ɔːˈɡænɪk/ /ɔɹˈɡænɪk/

有机化合物

"The chemist studied the properties of the organic compound. "

这位化学家研究了这种有机化合物的性质。

hydrogen noun

/ˈhaɪdɹədʒ(ə)n/ /ˈhaɪdɹədʒən/

氢，氢气。

"Hydrogen is the simplest chemical element, with only one proton in its atom. "

氢是结构最简单的化学元素，它的原子中只有一个质子。

contribute verb

/kənˈt(ʃ)ɹɪb.juːt/ /kənˈt(ʃ)ɹɪb.jut/

贡献，捐献。

"to contribute articles to a journal"

向期刊投稿文章。

radical noun

/ˈɹædɪkəl/

激进派, 激进分子.

"The radical proposed a new school policy to improve student access to resources. "

那位激进派人士提出了一项新的学校政策，旨在改善学生获取资源的途径。

carbonyl noun

/ˈkɑːrbənɪl/ /ˈkɑːrbənaɪl/

羰基，酰基。

"The carbonyl group is the reactive part of many important molecules, including sugars and fats. "

羰基是许多重要分子中具有反应活性的部分，包括糖类和脂肪。

characteristic noun

/ˌkæɹəktəˈɹɪstɪk/ /ˌkɛɹəktəˈɹɪstɪk/

特点，特征。

"The characteristic smell of freshly baked bread always reminds me of my grandmother's kitchen. "

新鲜出炉的面包那种独特的香味总是让我想起我奶奶的厨房。

attached verb

/əˈtætʃt/

连接，附着，附加。

"An officer is attached to a certain regiment, company, or ship."

一名军官隶属于某个团、连或舰艇。

reactive adjective

/riˈæktɪv/ /riˈeɪtɪv/

反应性的，有反应的

"The nervous dog was very reactive to loud noises, jumping at every sudden sound. "

这只神经紧张的狗对很大的噪音非常敏感，一听到突发的声音就跳起来，反应很大。

contain verb

/kənˈteɪn/

包含，容纳。

"The box contains several important documents. "

这个盒子里装有几份重要的文件。

functional noun

/ˈfʌŋk(t)ʃnəl/

泛函

"The functional analysis course focused on definite integrals, a type of mathematical function. "

泛函分析课程着重讲解了定积分，定积分是一种数学上的泛函。

compounds noun

/ˈkɑmpaʊndz/ /kəmˈpaʊndz/

营地，场地。

""During the war, the refugees lived in guarded compounds for their safety." "

战争期间，难民们为了安全起见，居住在有警卫的营地里。