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- arsenic heterocyclic ring 含砷杂环
- Azole:a class of organic compounds having a five-membered heterocyclic ring with two double bonds. 氮杂茂:一种由五种杂环元素,两组粘合剂组成的有机化合物。
- A class of organic compounds having a five-membered heterocyclic ring with two double bonds. 氮杂茂一种由五种杂环元素，两组粘合剂组成的有机化合物。
- Q represents the nonmetallic atoms necessary to complete a heterocyclic nucleus containing 5 atoms in the heterocyclic ring. Q是形成5个原子杂环核所必须的非金属原子。
- A chemical compound in the form of a heterocyclic ring,containing a metal ion attached by coordinate bonds to at least two nonmetal ions. 螯合物杂环化学复合物，由一个金属离子与两个或两个以上非金属离子构成配位键。
- A chemical compound in the form of a heterocyclic ring, containing a metal ion attached by coordinate bonds to at least two nonmetal ions. 螯合物杂环化学复合物，由一个金属离子与两个或两个以上非金属离子构成配位键
- A five-membered heterocyclic ring compound, C4H5N, having an odor similar to chloroform. It is the parent compound of hemoglobin, chlorophyll, and many other complex, biologically active substances. 叽咯一种五倍杂环混合物，C4H5N，气味与三氯甲烷相似，是血红蛋白，叶绿素和其他多种复杂的生物性活跃的物质的亲体混合物
- A five-membered heterocyclic ring compound,C4H5N,having an odor similar to chloroform. It is the parent compound of hemoglobin,chlorophyll,and many other complex,biologically active substances. 叽咯一种五倍杂环混合物，C4H5N，气味与三氯甲烷相似，是血红蛋白，叶绿素和其他多种复杂的生物性活跃的物质的亲体混合物。
- Structute of nitrogen heterocyclic ring quaternary ammonium salt cationic surfactants was identi fied by mass spectrography, nuclear magnetic resonance spectra,infrared spectra and etc. 用质谱法、核磁共振波谱法、红外光谱法等，确定了未知氮杂环季铵盐型阳离子表面活性剂的结构。
- Experiment results show that all these complexes are four coordinated stoichiometry including five-membered heterocyclic rings. 对配体及其配合物进行了元素分析、红外光谱和核磁共振光谱等手段的结构表征，结果表明配体与金属离子之间形成了含一个五元环和一个六元环的四配位的中性配合物。
- A drug or preparation containing arsenic. 砷化合物含砷的药剂或制剂
- His wife poisoned him with arsenic. 他妻子用砒霜把他毒死了。
- She had the sapphire set in a gold ring. 她把那枚蓝宝石镶在金戒指上了。
- The diamond ring dazzled with brilliancy. 这只钻石戒指闪耀夺目。
- She wears a diamond ring on her left hand. 她左手上戴着一枚钻石戒指。
- Our family reunions are always three ring circus. 我家合家团聚的场面总是热闹非凡。
- The analysis showed a few grains of arsenic in the solution. 分析显示溶液中有几格令的砷。
- I am sorry-she's out. Can you ring again later? 对不起－她出去了。你过些时候再打电话来好吗？
- The boys and girls made a ring round us. 男孩和女孩围着我们站了一圈。
- Please ring for the attendant if you need anything. 如果需要什么，请按铃找服务员。
