n.五边形，五角形，五角大楼（指美国国防部）...

Many cyclopentane derivatives also absorb in this region.很多环戊烷的衍生物在这个范围也出现吸收....

环戊稠全氢化菲...

aminopentane的音标：aminopentane的英式发音音标为：[æmɪnəʊpen'teɪn]aminopentane的美式发音音标为：[æmɪnoʊpen'teɪn]...

In there compounds, the cyclopentadiene ring has only four hydrogens.在这些化合物里, 环戊二烯环只有4个氢.The cyclopentadiene is prepared by the thermal cracking of dicyclopentadiene.以热裂解双环戊二烯的方法制备环戊二烯.The chemistry of cyclopentadiene or...

I remain an unrepentant rationalist.我仍是一位执迷不悟的理性主义者.He killed them because they were unrepentant.因为他们不肯悔改,他就杀死了他们.Pamela was unrepentant about her strong language and abrasive remarks.对于自己的激烈言辞和恶语相向，帕梅拉并无悔意。...unrepentan...

Leptopentacta的音标：...

isopentanize的音标：isopentanize的英式发音音标为：[aɪsə'pentənaɪz]isopentanize的美式发音音标为：[aɪsə'pentənaɪz]...

n.环戊醇...

五角大楼，美国国防部...

Pentagon spokes-man Williams says those talks are coming along quite well.五角大楼发言人威廉斯说那些会谈进展得相当顺利。A group of people made a circle around the Pentagon.一群人在五角大楼四周围成一圈。The Pentagon says bad weather is hampering the allied ai...

fenpentadiol的音标：fenpentadiol的英式发音音标为：[fenpɪn'tædɪəʊl]fenpentadiol的美式发音音标为：[fenpɪn'tædɪoʊl]...

n.环戊烷...

iodopentane的音标：iodopentane的英式发音音标为：[ɪədəʊpen'teɪn]iodopentane的美式发音音标为：[ɪrdoʊpen'teɪn]...

cyclopentanol的音标：cyclopentanol的英式发音音标为：[saɪkləʊ'pentənɒl]cyclopentanol的美式发音音标为：[saɪkloʊ'pentənɒl]...

n.二氯戊烷...

methylenecyclopentadiene的音标：methylenecyclopentadiene的英式发音音标为：['meθɪlnəsaɪkləʊpentæd]methylenecyclopentadiene的美式发音音标为：['meθɪlnəsaɪkloʊpentæd]...

氨基戊烷...

adj.不后悔的，不懊悔的，死不改悔...

n.悔悟，悔改，后悔，忏悔...

乙基戊醇...

dicyclopentadienyltin的音标：dicyclopentadienyltin的英式发音音标为：[daɪsaɪkləʊpenteɪdɪənɪl'tɪ]dicyclopentadienyltin的美式发音音标为：[daɪsaɪkloʊpenteɪdɪrnɪl'tɪ]...

methylpentanone的音标：methylpentanone的英式发音音标为：[meθɪlpəntə'nɒn]methylpentanone的美式发音音标为：[meθɪlpəntə'nɒn]...

Late repentance is seldom true.后悔少有诚意。He shows no repentance for what he has done.他对他的所作所为一点也不懊悔.Considering the signs he showed of genuine repentance,we shall deal leniently with him.鉴于他有真诚悔改的表现,我们将对他宽大处理。Confession is ...

The cyclopentadiene is prepared by the thermal cracking of dicyclopentadiene.以热裂解双环戊二烯的方法制备环戊二烯.The method of cyclopentadiene ( CPD ) from dicyclopentadiene ( DCPD ) with liquid phase thermal decomposition method is stud...

ethylpentane的音标：ethylpentane的英式发音音标为：[ɪθɪlpən'teɪn]ethylpentane的美式发音音标为：[ɪθɪlpən'teɪn]...

戊烷馏除器...

n.氯苯己基戊二醇...

cyclopentadecane的音标：cyclopentadecane的英式发音音标为：[saɪkləʊpentædɪ'keɪn]cyclopentadecane的美式发音音标为：[saɪkloʊpentædɪ'keɪn]...

Its metallation and addition to cyclopentanone proceeded well to 40.其金属取代物能和环戊酮顺利地反应得到40.Cyclopentanone ethylene ketal was synthesized with I _ 2 as catalyst.以单质碘为催化剂合成了环戊酮乙二缩酮.Methyl dihydrojasmonate was synthesized fro...