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epimer

/ˈɛpɪmə(ɹ)/

Meanings
noun

差向异构体，差向异构物

Any diastereoisomer that has the opposite configuration at only one of the stereogenic centres.

Examples :

"Glucose and galactose are epimers because they differ in configuration only at carbon number 4. "
葡萄糖和半乳糖是差向异构体，因为它们的构型仅仅在第四个碳原子上不同。
chemistry biochemistry

Related Words

Illustration opposite

opposite noun

/ˈɒpəsɪt/ /ˈɑp(ə)sɪt/

反面，对立面

"My brother's opinion is the opposite of mine on the best way to study for the exam. "

在考试复习的最佳方法上，我哥哥的意见和我的正好相反。

Illustration carbon

carbon noun

/ˈkɑɹbən/

碳， 炭。

"The pencil's lead is made of carbon. "

铅笔的笔芯是用碳做的。

Illustration that

that noun

/ˈðæt/ /ˈd̪æt/ /ˈðɛt/

那个，那件事。

"My sister brought several books to the library, and that one is about dinosaurs. "

我姐姐带了几本书去图书馆，那本是关于恐龙的。

Illustration because

because adverb

/bɪˈkɒz/ /biˈkɔz/

因为，由于。

"I went to the park because the weather was nice. "

因为天气很好，所以我去了公园。

Illustration configuration

configuration noun

/kənˌfɪɡjəˈreɪʃən/ /kənˌfɪɡjʊˈreɪʃən/

配置，构型.

"The office chairs came in a standard configuration, but employees could adjust the back support and armrests to their liking. "

这些办公椅都是标准配置的，但员工可以根据自己的喜好调整靠背和扶手。

Illustration galactose

galactose noun

/ɡəˈlæktos/ /ɡəˈlæktouz/

半乳糖

"The milk my daughter drinks contains galactose, a simple sugar found in dairy products. "

我女儿喝的牛奶里含有半乳糖，这是一种乳制品中常见的简单糖。

Illustration epimers

epimers noun

/ˈɛpɪmərz/

差向异构体，差向异构物

"Glucose and galactose are epimers because they differ only in the configuration around one carbon atom. "

葡萄糖和半乳糖是差向异构体，因为它们仅仅在一个碳原子上的构型不同。

Illustration glucose

glucose noun

/ˈɡluːkoʊz/ /ˈɡlukoʊs/

葡萄糖

"After eating a banana, the body breaks down the carbohydrates into glucose, which provides energy for activities like playing sports or studying. "

吃了一根香蕉后，身体会将碳水化合物分解成葡萄糖，葡萄糖为运动或学习等活动提供能量。

Illustration diastereoisomer

diastereoisomer noun

/daɪˌæstəriːoʊˈaɪsəmər/ /daɪˌæstɪəriːoʊˈaɪsəmər/

非对映异构体, 非对映异构物

"Because they differ in their spatial arrangement around multiple chiral centers and are not mirror images, erythrose and threose are diastereoisomers of each other. "

由于赤藓糖和苏糖在多个手性中心周围的空间排列不同，而且它们彼此不是镜像关系，因此赤藓糖和苏糖互为非对映异构体。

Illustration number

number noun

/ˈnʌmbə/ /ˈnʌmbɚ/ /ˈnʌmə/ /ˈnʌmɚ/

数字，号码

"Zero, one, −1, 2.5, and pi are all numbers."

零、一、负一、二点五和π都是数字。

Illustration differ

differ verb

/ˈdɪfə/ /ˈdɪfɚ/

不同，差异，有别

"These shoes only differ from those ones in having slightly longer laces."

这些鞋子和那些鞋子的唯一区别就是鞋带稍微长了一点。

Illustration centres

centres noun

/ˈsen.tə(ɹ)s/ /ˈsɛn.tɚs/

中心，中央，圆心。

"In geometry class, we learned that the centres of circles are always the same distance from the edge, no matter where on the edge you measure. "

在几何课上，我们学到无论你从圆的边缘哪个点测量，圆心到边缘的距离永远是相等的。