pentyl

/ˈpɛntɪl/

Meanings

noun

戊基

Any of several isomeric univalent hydrocarbon radicals, C5H11, formally derived from pentane by the loss of a hydrogen atom.

Examples :

"The chemical formula for the pentyl group attached to that molecule is C5H11. "

连接到那个分子的戊基的化学式是C5H11。

Related Words

pentane noun

/ˈpɛnˌteɪn/ /pɛnˈteɪn/

戊烷

"The lab technician carefully measured out a small amount of pentane for the experiment. "

实验室技术员小心地量取了少量的戊烷用于实验。

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。

several noun

/ˈsɛv(ə)ɹəl/

几块私有土地, 私人 земельный участок

"The family owns several, a small plot of land behind their house. "

这家人拥有几块私有土地，就在他们房子后面有一小块。

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。

radicals noun

/ˈrædɪkəlz/

激进派，急进分子

"The radicals in the student council advocated for changes to the school's dress code. "

学生会的激进派主张修改学校的着装规定。

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。

formula noun

/ˈfɔː.mjʊ.lə/ /ˈfɔɹ.mjə.lə/

公式，方程式

"The formula for calculating the area of a rectangle is length times width. "

计算长方形面积的公式是长乘以宽。

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。

univalent noun

/juːˈnɪvələnt/

单价染色体，一价体

"During the cell division process of meiosis, if a pair of chromosomes fails to match up properly, the single, unpaired chromosome is called a univalent. "

在减数分裂的细胞分裂过程中，如果一对染色体没有正确配对，那么这个单个的、未配对的染色体就被称为单价染色体/一价体 (dān jià rǎn sè tǐ / yī jià tǐ)。

formally adverb

/ˈfɔːməli/ /ˈfɔɹməli/

正式地，庄重地

"He was dressed too formally for the occasion."

他穿得过于正式，和这个场合不太相符。

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。

molecule noun

/ˈmɒləkjuːl/ /ˈmɑləkjul/

分子

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

氯化氢是一种双原子分子，它由一个氢原子和一个氯原子构成。