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...

菖蒲二烯...

gradients的音标：...

The hydrogenation of diene compound and carbonyl group with yeasts was studied.对几种酵母细胞催化双烯和羰基的加氢反应作了一些初步研究.EPDM is a terpolymer elastomer made from ethylene - propylene diene monomer.epdm是一种由乙烯 - 丙烯、二烯单聚物构成的三元共聚物弹性材料.The...

adj.不服从的，不顺从的，违抗的，反抗的...

环庚二烯...

n.环己二烯...

amyradiene的音标：amyradiene的英式发音音标为：[eɪmaɪ'reɪdɪən]amyradiene的美式发音音标为：[eɪmaɪ'reɪdɪrn]...

butadiene的音标：butadiene的英式发音音标为：[ˌbju:tə'dɑɪi:n]butadiene的美式发音音标为：[ˌbjutə'dɑɪin]...

The disease was controlled by the simple expedient of not allowing anyone to leave the city.通过禁止任何人出城的简单应急办法使疾病得到了控制。It was expedient to retire gracefully.体面的让步可算是权宜之计.Do whatever is expedient.权宜处置,怎么方便就怎么办....

没食子...

n.方便，私利，权宜...

They command the respect and obedience of the armed forces.他们要求武装部队尊重上级，服从指挥。Isabella had been taught unquestioning obedience.伊莎贝拉被要求无条件服从。Soldiers act in obedience to the orders of their superior officers.士兵们遵照上级军官的命令行动...

ingredient的复数形式为：ingredients...

isogradient的音标：isogradient的英式发音音标为：[aɪsəʊɡ'reɪdɪənt]isogradient的美式发音音标为：[aɪsoʊɡ'reɪdɪrnt]...

n.超人的听力，顺风耳，神听，透听...

obediences的音标：...

n.联麦角（甾）醇...

inexpedient的音标：inexpedient的英式发音音标为：[ˌɪnɪk'spi:diənt]inexpedient的美式发音音标为：[ˌɪnɪk'spidiənt]...

obedience的音标：obedience的英式发音音标为：[ə'bi:dɪəns]obedience的美式发音音标为：[o'bidiəns]...

metandienone的音标：metandienone的英式发音音标为：['metəndɪənən]metandienone的美式发音音标为：['metəndɪrnən]...

cyclobutadiene的音标：cyclobutadiene的英式发音音标为：[saɪkləʊbju:tə'di:n]cyclobutadiene的美式发音音标为：[saɪkloʊbjutə'din]...

n.丁二烯...

dienomycin的音标：dienomycin的英式发音音标为：[daɪənə'maɪsɪn]dienomycin的美式发音音标为：[daɪənə'maɪsɪn]...

diencephalon的音标：diencephalon的英式发音音标为：[ˌdaɪen'sefəlɒn]diencephalon的美式发音音标为：[ˌdaɪen'sefəˌlɒn]...

expediencies的音标：...

n.观众，听众，读者( audience的名词复数 )...

Against all expectations, the theatre reopened to encouragingly large audiences.出乎所有人预料，剧院重新开放，观众数量惊人。The choreography of Eric Hawkins is considered radical by ballet audiences.芭蕾舞观众认为埃里克·霍金斯的舞蹈设计非常前卫。The production rece...

dienol的音标：dienol的英式发音音标为：['dɪənɒl]dienol的美式发音音标为：['dɪrnɒl]...

二亚乙基三胺...