這些衍生物可以容易地在堿性條件下通過 2- 巰基吡啶和鹵代烷的烷基化而得到.用英語怎么說？

這些衍生物可以容易地在堿性條件下通過 2- 巰基吡啶和鹵代烷的烷基化而得到.

These derivatives are readily obtained by alkylation of 2 - mercaptopyridine and alkyl halides under alkaline conditions.

these

adj. 這些的；pron. 這些；

例句
There's lots of money about these days for schemes like this.
近來這類計劃資金充足。

derivatives

n. 衍生性金融商品，派生物，引出物( derivative的名詞復數 )，導數；

例句
Sixteen flavanone - 7 - O - acetic acids, acetates, acetyl amino acidsand dipeptides derivatives were synthesized.
合成16個黃烷酮 -7-O- 乙酸、乙酸酯、乙酰氨基酸和二肽衍生物.

are

vi. （用于第二人稱單復數現在時，第一、三人稱復數現在時）是；n. 公畝（等于100平方米）；

例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我們不敢放縱自己的情感，以免顯得太過軟弱或缺乏自制。

readily

adv. 樂意地，快捷地，輕而易舉地，便利地；

例句
Wild boar readily hybridises with the domestic pig...
野豬很容易和家豬雜交。

obtained

v. 獲得( obtain的過去式和過去分詞 )，買到，（規則、制度、習俗等）存在，流

例句
I had obtained the authentic details about the birth of the organization.
我已經掌握了有關該組織誕生的可靠的詳細資料。

by

prep. 在…旁邊，表示方式，由于，經過；adv. 經過，表示保留或保存時用，短暫拜訪；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我們所見的由一位漂亮模特代言的昂貴化妝品

alkylation

n. 烷化，烴化；

例句
These derivatives are readily obtained by alkylation of 2 - mercaptopyridine and alkyl halides under alkaline conditions.
這些衍生物可以容易地在堿性條件下通過 2- 巰基吡啶和鹵代烷的烷基化而得到.

of

prep. 關于，屬于…的，由…制成；aux. 助動詞 [非標準用語、方言] =have [主用于虛擬語氣]；

例句
He did have a real knowledge of the country...
他對該國的確知之甚多。

and

conj. 和，與，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多錢購買昂貴的首飾和衣服。

alkyl

n. 烷基，烴基；adj. 烷基的，烴基的；

例句
Nonionics include polyoxyethylene condensates, sucrose esters and alkyl amine oxides.
非離子型表面活性劑有聚氧乙烯縮合物糖酯和烷基胺氧化物.

under

prep. 在…下面，在表面之下，在…的假定表面或掩飾下，少于，小于，在…情況下；adv. 在下面，少于，在水下，在昏迷中；adj. 較低的，下面的；

例句
...efforts to acquaint the public with their rights under the new law...
為使公眾熟悉新法律所賦予的權利而作出的努力

alkaline

adj. 堿性的，堿的，含堿的；n. 堿度，堿性；

例句
Some soils are actually too alkaline for certain plant life.
有些土壤其實堿性過強，不利于某些植物生長。

conditions

n. （居住、工作或做事情的）環境，（影響某事發生的）物質環境，<保險>承保險別，條件( condition的名詞復數 )，狀況，健康狀況，環境；

例句
They have been living under the most appalling conditions for two months.
他們已經在惡劣不堪的條件下生活兩個月了。

...the spiralling vortex airflow that slows the plane.
使飛機減速的螺旋形氣流渦旋

You just go on ahead. I'll come by later...
你只管先往前走。我隨后就來。

He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打兒子的,是恨惡他;疼愛兒子的, 趁早管教.

For further information, please contact 414 3925, extension 2253.
詳情請致電414 3925,轉分機2253。

He sat there while I made the case for his dismissal...
他坐在那兒，聽我陳述解雇他的理由。

Baroness Thatcher's claims seem credible to many.
撒切爾女男爵的主張在很多人看來是可信的。

Nothing to be got without pains but poverty.
一份耕耘，一份收獲。

This decree obliges unions to delay strikes.
該法令迫使工會推遲罷工。

The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索權當有支付義務的第一方不能支付時，可以向商業票據的背書人要求支付的權力。

The gap between the now knowable and unknowable is vast.
現已知與未知之事間的距離極大.

Aspline curve is presented which interpolates given points and tangent directions with piecewise involute of circle.
利用拼接的圓漸開線實現對平面上的數據點及其切向的插值.

The process of anodizing lnvolves the deposition of further oxide on the surface.
陽極電鍍的工序就是在表面進一步附著氧化層.

The night sky was lit up by flashes of light.
一道道燈光照亮了夜空。

The dash is longer than the hyphen.
破折號比連字符稍長點.

I usually buy sliced bread — it's less bother.
我通常都買切片面包——比較省事。

Her star seems very much in the ascendant.
她看來吉星高照.

You're anemic, you must have some iron.
你貧血, 一定要吃些帶鐵質的食品.

So , Elizabeth Bennet and Jane Eyre are two different Cinderellas in the 19 th century.
伊麗莎白·班納特和簡·愛是十九世紀英國文學中兩個完全不同的灰姑娘.