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Cucurbituril is a macrocyclic cavitand compound with two portals.是什么意思？

Cucurbituril is a macrocyclic cavitand compound with two portals.

葫芦脲是一种具有大环空腔、两端开口的葫芦状分子.

相关词汇
is macrocyclic compound with two portals

is

vt.& vi. 是（be的三单形式；n. 存在；

macrocyclic

adj. 大环的；

compound

n. 场地，复合物，（筑有围墙的）院子，复合词；

with

prep. 和，跟，随着，关于，和…一致；

two

n. 两个，两个东西，两点钟，一对；adj. 两个的，我

portals

n. 入口( portal的名词复数 )，桥门，[解剖学]肝门，出孔；
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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。
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。
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。
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。
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别耍嘴皮子,玛布尔,你这里住的都是些什么人?
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他说统计学家“用数据说谎”，败坏了他们的名声。
Imagine the face of Philip or Alexander at hearing of a Primer of Macedonian Literature!
想一想,菲利普或亚历山大听到有所谓马其顿文学入门,脸上会有什么表情罢!
Macrobiotics adhere to a diet consisting primarily of whole grains and beans.
长寿饮食法的饮食主要是含胚芽和麸的谷物及豆类.
Mack seemed to uncoil slowly up into a standing position.
麦克慢慢直起身站了起来。
Macclesfield have signed former Liverpool academy striker Craig Lindfield on a short - term contract.
麦克莱斯菲尔德与我军前青训小前锋林菲尔德签下一份 短期 合同.
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要生产肥皂, 需要三种主要材料: 油, 水和碱水.
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麦克米伦回信说他肯定能帮忙。
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麦考莱把查理二世描写为无信义的狂热者.
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上皮细胞内质网扩张, 微绒毛减少, 染色体浓集, 溶酶体增多.
He's written a few overtly political lyrics over the years.
他这些年写了几首政治色彩鲜明的抒情诗。
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他的分析是宏观的, 个别商行不能直接引用.
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这个夜间的异象就是我们大家所熟悉的“马其顿的呼声”.
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还探讨了加工多晶材料时晶界台阶的形成.