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The purified rice amylose and amylopectins were obtained by n - butanol recrystallization method.是什么意思？

The purified rice amylose and amylopectins were obtained by n - butanol recrystallization method.

采用正丁醇反复结晶法分离得到的直链淀粉和支链淀粉有较高的纯度.

相关词汇
the purified rice amylose and were obtained by butanol method

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

purified

adj. 纯化的；v. 使纯净，使洁净( purify的过去式和过去分词 )；
例句
Only purified water is used.
只使用纯净水。

rice

n. 稻，稻米， 大米；vt. 筛选；
例句
The sudden appearance of a few bags of rice could start a riot.
突然出现几袋大米可能会引起骚乱。

amylose

n. 直链淀粉，多糖，糖淀粉；
例句
With the method of complexing structure, amylose and amylopectin have been successively separated and purified.
以反复水洗法提取莲藕淀粉,采用络合结构法成功分离纯化直链淀粉和支链淀粉.

and

conj. 和，与，而且，于是，然后，因此；
例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；
例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

obtained

v. 获得( obtain的过去式和过去分词 )，买到，（规则、制度、习俗等）存在，流
例句
I had obtained the authentic details about the birth of the organization.
我已经掌握了有关该组织诞生的可靠的详细资料。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；
例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

butanol

n. 丁醇；
例句
The purified rice amylose and amylopectins were obtained by n - butanol recrystallization method.
采用正丁醇反复结晶法分离得到的直链淀粉和支链淀粉有较高的纯度.

method

n. 方法，条理；
例句
...an accrual method of accounting.
会计学中的应计法
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
The well bred contradict oth er people. The wise contra ? dict themselves.
绅士与他人发生冲突, 智者 与自己发生冲突.
There is considerable ambiguity about what this part of the agreement actually means.
协议这一部分的真正含义很不明确。
His voice roughened with every word.
他说话的声音越来越嘶哑。
He took a saxophone from the Salvation Army but was caught and had to hand it back.
他从救世军那里拿了一支萨克斯管，但却被抓住了，只得将其交还。
He had six stitches in a head wound.
他头上的伤口缝了 6 针。
Misfortunes (or Hardships) never (or seldom) come alone (or singly).
祸不单行。
Does worker individual need insurance premium of pay inductrial injury?
职工个人需要缴纳工伤保险费 吗 ?
Horrified commuters saw the lorry veer across the motorway and overturn.
惊恐万分的通勤者们看见那辆卡车突然冲向高速公路另一侧，接着翻倒在地。
General ledger books: those established to record all controlling accounts.
一总分类帐簿: 为记载各统驭科目而设者.
His visit and mine overlapped.
他的访问期与我的访问期有几天重叠.